# EditPDFKit

> 100% Free, Private In-Browser PDF & Image Editing Suite

EditPDFKit is an ultra-fast, 100% client-side web application for editing, converting, signing, compressing, and managing PDF and image files directly inside the browser with zero server uploads and zero privacy risks.

## Available Tools & Direct Capabilities

- [Resize Image](https://www.editpdfkit.com/tools/resize-image): Resize image dimensions by pixels, percentage, or social media presets.
- [Compress Image](https://www.editpdfkit.com/tools/compress-image): Reduce image file size to exact KB targets with real-time before/after comparison.
- [Convert Image Formats](https://www.editpdfkit.com/tools/convert-image): Convert between JPG, PNG, WEBP, GIF, BMP, TIFF, SVG, and HEIC.
- [Crop Image](https://www.editpdfkit.com/tools/crop-image): Crop photos with freeform selection or fixed aspect ratios.
- [Rotate & Flip Image](https://www.editpdfkit.com/tools/rotate-image): Rotate photos 90°, 180°, 270° or flip horizontally and vertically.
- [Add Watermark](https://www.editpdfkit.com/tools/watermark-image): Stamp custom text or logo watermark with adjustable opacity and position.
- [Photo Filters & Basic Edits](https://www.editpdfkit.com/tools/edit-image): Tune brightness, contrast, saturation, and apply stylish filters.
- [Merge Images](https://www.editpdfkit.com/tools/merge-images): Combine multiple photos onto a single page or canvas with pre-merge cropping.
- [Remove Background](https://www.editpdfkit.com/tools/remove-bg): Remove backgrounds instantly from portraits, products, and logos with free HD transparent PNG export.
- [OCR PDF & Image to Text](https://www.editpdfkit.com/tools/ocr-pdf): Extract editable and searchable text from scanned PDFs and photos.
- [Notes Maker](https://www.editpdfkit.com/tools/notes-maker): Create multi-page notes, formula sheets, and study materials with handwriting fonts and export to PDF.
- [Document Scanner](https://www.editpdfkit.com/tools/scan-document): Use your phone or laptop camera to scan paper documents and notes into clean, watermark-free PDFs.
- [Edit PDF](https://www.editpdfkit.com/tools/edit-pdf): Edit existing text directly on your PDF pages, add signatures, whiteout errors, and fill forms.
- [Sign PDF](https://www.editpdfkit.com/tools/sign-pdf): Sign PDF documents online free with draw, type, or image electronic signatures.
- [Watermark PDF](https://www.editpdfkit.com/tools/watermark-pdf): Add custom text or image/logo watermarks across all pages of your PDF.
- [Add Page Numbers to PDF](https://www.editpdfkit.com/tools/page-numbers-pdf): Insert page numbers and Bates numbering into PDF headers or footers.
- [Redact PDF](https://www.editpdfkit.com/tools/redact-pdf): Permanently blackout sensitive text, SSN numbers, and confidential data in PDF.
- [Flatten PDF](https://www.editpdfkit.com/tools/flatten-pdf): Flatten PDF fillable forms, fields, and annotations into permanent flat layers.
- [Merge PDF](https://www.editpdfkit.com/tools/merge-pdf): Combine multiple PDF files and scanned documents into one single document with no file size limits.
- [Rotate PDF](https://www.editpdfkit.com/tools/rotate-pdf): Rotate PDF pages 90, 180, or 270 degrees permanently. Rotate single pages or entire documents online for free.
- [Split PDF](https://www.editpdfkit.com/tools/split-pdf): Extract specific page ranges or split a PDF into separate files.
- [Compress PDF](https://www.editpdfkit.com/tools/compress-pdf): Reduce PDF file size while maintaining excellent document clarity.
- [PDF to JPG & PNG](https://www.editpdfkit.com/tools/pdf-to-jpg): Extract all PDF pages as high-resolution images or packaged ZIP.
- [Images to PDF](https://www.editpdfkit.com/tools/jpg-to-pdf): Combine JPG, PNG, WEBP, and photos into a single PDF document.
- [PDF to Word (DOCX)](https://www.editpdfkit.com/tools/pdf-to-word): Convert PDF documents into editable Microsoft Word (.docx) files.
- [Word to PDF](https://www.editpdfkit.com/tools/word-to-pdf): Convert DOCX and Word documents into crisp, standard PDF files.
- [PDF to Excel (XLSX & CSV)](https://www.editpdfkit.com/tools/pdf-to-excel): Extract tables and tabular financial data from PDF into editable Excel (.xlsx) and CSV spreadsheets.
- [Excel to PDF](https://www.editpdfkit.com/tools/excel-to-pdf): Convert Excel spreadsheets (.xlsx, .xls, .csv) into clean, printable PDF documents.
- [PDF to PowerPoint](https://www.editpdfkit.com/tools/pdf-to-ppt): Convert PDF presentations and documents into editable Microsoft PowerPoint (.pptx) slides.
- [PowerPoint to PDF](https://www.editpdfkit.com/tools/ppt-to-pdf): Convert PowerPoint presentation decks (.pptx, .ppt) into presentation-ready vector PDF files.
- [PDF to Text / HTML](https://www.editpdfkit.com/tools/pdf-to-text): Extract pure text or clean HTML content from PDF files.
- [Text to PDF](https://www.editpdfkit.com/tools/text-to-pdf): Convert plain text notes, TXT files, and Markdown documents into clean, printable PDF files online for free.
- [eBook to PDF](https://www.editpdfkit.com/tools/ebook-to-pdf): Convert EPUB, MOBI, and digital books into beautifully formatted, printable PDF documents.
- [Protect PDF (Encrypt)](https://www.editpdfkit.com/tools/protect-pdf): Add strong password encryption and restrict unauthorized viewing.
- [Unlock PDF (Decrypt)](https://www.editpdfkit.com/tools/unlock-pdf): Remove password security and restrictions from unlocked PDFs.
- [Remove Metadata](https://www.editpdfkit.com/tools/remove-metadata): Strip EXIF, GPS, author info, and hidden tracking metadata from PDF and photos.
- [Multiple Pages per Sheet](https://www.editpdfkit.com/tools/pdf-n-up): Print 2, 4, 6, or 9 PDF pages onto a single sheet. Save paper and create handouts.
- [PDF to HTML](https://www.editpdfkit.com/tools/pdf-to-html): Convert a PDF into a single self-contained HTML file with pixel-perfect layout and selectable, copyable text.

## Step-by-Step How-To Guides & Tutorials

- [How to Compress Images to 200KB (or Any Target Size) Without Quality Loss](https://www.editpdfkit.com/blog/compress-image-to-200kb): Many government job portals, university admissions, and online forms strictly enforce file size limits like 200KB, 100KB, or 50KB. With EditPDFKit's client-side solver, you can dial in an exact KB target and let our smart algorithm find the optimal compression ratio with zero server uploads.
- [How to Convert PDF to Editable Word (DOCX) Without Losing Formatting](https://www.editpdfkit.com/blog/convert-pdf-to-word-without-losing-formatting): Converting complex PDFs to Microsoft Word often breaks columns, mangles tables, and loses embedded images. This guide demonstrates how to use EditPDFKit's layout reconstruction engine to generate crisp, editable .docx documents while keeping your confidential contracts and reports private on your own device.
- [How to Remove Image Backgrounds for Free with Instant Subject Cutouts](https://www.editpdfkit.com/blog/remove-image-background-free): Need transparent PNG cutouts for your e-commerce product listings, social media avatars, or graphic design projects? Learn how to automatically strip solid backgrounds, green screens, and complex backdrops without paying for expensive subscriptions.
- [How to Resize Photos & Signatures for Online Applications (US Visa, Passports & Forms)](https://www.editpdfkit.com/blog/resize-photos-and-documents-for-online-portals): Online application portals, international visa systems (DS-160, Schengen), and corporate forms often reject uploads if pixel dimensions or file sizes exceed strict thresholds. Here is how to achieve exact specifications in seconds.
- [How to Edit Existing Text in a PDF and Add a Digital Signature](https://www.editpdfkit.com/blog/edit-pdf-text-and-sign): Need to correct a typo in a contract, update a date, or sign an agreement without printing and scanning? EditPDFKit's Edit PDF Canvas Studio lets you edit text directly on the page, draw vector signatures, and stamp documents with zero cost.
- [How to Merge Multiple PDF Files into One Document Online](https://www.editpdfkit.com/blog/merge-multiple-pdf-files): Combining various invoices, scanned receipts, lecture notes, or project deliverables into a single unified PDF is one of the most common office tasks. Here is how to merge unlimited files together without installing bulky software.
- [How to Password Protect and Encrypt a PDF Document](https://www.editpdfkit.com/blog/password-protect-pdf): Sharing sensitive bank statements, tax returns, healthcare records, or employee contracts over email? Protect your PDF with military-grade AES encryption so only authorized recipients with the correct password can view or print the content.
- [How to Extract Text and Tables from Scanned PDFs with Free OCR](https://www.editpdfkit.com/blog/extract-text-from-scanned-pdf): Received a scanned contract or physical book PDF where you can't highlight, search, or copy text? Learn how to extract clean plain text, structured Markdown, and tabular CSV spreadsheets with EditPDFKit's text extraction intelligence.
- [How to Convert iPhone HEIC and JPG Photos to PDF Documents](https://www.editpdfkit.com/blog/convert-heic-and-jpg-to-pdf): iPhone camera photos are saved by default in Apple's proprietary HEIC format, which many government websites, school portals, and Windows computers fail to open. Learn how to package your HEIC and JPG pictures into standard, universal PDF files in seconds.
- [How to Crop Photos into Perfect Circles and Profile Avatars](https://www.editpdfkit.com/blog/crop-photos-into-circles-or-avatars): Looking to create a circular headshot for LinkedIn, Twitter, Discord, or an employee badge? Learn how to crop your photos with exact aspect ratios and circular cutouts using EditPDFKit's interactive studio cropper.
- [How to Add Custom Text and Logo Watermarks to Protect Your Work](https://www.editpdfkit.com/blog/watermark-documents-and-photos): Whether you are a real estate photographer, artist, lawyer, or business owner sharing sensitive draft proofs, adding a visible watermark prevents unauthorized redistribution and ensures your brand gets proper attribution.
- [How to Scan Physical Documents into Clean PDFs with Your Phone Camera](https://www.editpdfkit.com/blog/scan-documents-with-phone-camera): Don't have a bulky flatbed scanner? EditPDFKit's Doc Scanner Studio uses your smartphone camera or uploaded snapshot, automatically corrects 4-corner perspective distortion, enhances contrast with Magic Color, and exports clean, multi-page PDFs with zero watermarks.
- [How to Compress Photo and Signature for Standard Digital, CHSL & Govt Job Portals](https://www.editpdfkit.com/blog/compress-headshot-photo-and-signature-for-online-applications): Applying for Standard Digital, CHSL, MTS, or State PSC exams? Government application servers strictly reject uploads if your passport photo is not between 20KB-50KB (3.5cm x 4.5cm) or your signature is not between 10KB-20KB (4.0cm x 2.0cm). Here is how to compress and crop both files to the exact byte count in seconds on your mobile or PC without blurriness.
- [How to Compress PDF Under 200KB for Job Portal, State PSC & E-Filing Portals](https://www.editpdfkit.com/blog/compress-pdf-to-under-200kb-for-visa-and-job-portals): Government portals such as Job Portal (Union Public Service Commission), state PSCs, Corporate, and high court e-filing registries mandate certificate uploads (caste, degree, disability, affidavits) to be strictly in PDF format between 20KB and 200KB (or 300KB). Here is how to shrink large scanned multi-page certificates down to under 200KB while preserving legible text, seals, and official stamps.
- [How to Edit PDF Text and Sign Documents Without Paying for Adobe Acrobat](https://www.editpdfkit.com/blog/edit-pdf-without-paying-adobe-acrobat): Adobe Acrobat Pro costs over $240 per year, locked behind recurring subscriptions and early termination fees. If you simply need to correct a typo in a contract, fill out an application form, insert your signature, or redact confidential financial numbers, you can do it completely free with EditPDFKit right inside your web browser—no installation, watermarks, or credit cards required.
- [How to Scan Documents to PDF with Your Phone Without Watermarks or CamScanner](https://www.editpdfkit.com/blog/scan-documents-to-pdf-without-watermark): Popular scanning apps like CamScanner, Adobe Scan, and TurboScan often slap ugly 'Scanned by...' watermarks on your papers, lock multi-page scanning behind expensive subscriptions, or require you to register personal email accounts. With EditPDFKit's Doc Scanner, you can use your smartphone camera to capture, perspective-crop, enhance with Magic Color, and export pristine, multi-page PDFs with zero watermarks and zero app installs.
- [How to Make Digital Handwritten Notes for Job Portal & Govt Exams (Free PDF Export)](https://www.editpdfkit.com/blog/create-digital-study-notes-and-cheat-sheets-online): Creating crisp, structured revision notes is essential for academic research, business briefings, and university exams. Learn how to use EditPDFKit's free in-browser digital notebook with Cornell layouts, handwriting fonts, diagram insertion, and vector PDF exports.
- [How to Reduce Image Quality and File Size Online (Free Image Quality Reducer)](https://www.editpdfkit.com/blog/reduce-image-quality-and-size): Whether you need to upload a smaller photo to a website, reduce image quality to meet strict KB limits, or optimize images for faster web performance, EditPDFKit's Image Quality Reducer allows you to visually adjust quality with real-time before/after comparison.
- [How to Remove PNG Background Free with HD Transparent Download (Cutout Maker)](https://www.editpdfkit.com/blog/remove-png-background-transparent-hd): Removing the background from a PNG or JPG graphic used to require complex Photoshop masking. With EditPDFKit's client-side AI Background Remover, you can isolate subjects, create transparent cutouts, and download high-resolution PNGs in seconds with zero watermarks.
- [How to Scan Paper Documents to Clean PDF with Mobile Camera Online](https://www.editpdfkit.com/blog/scan-paper-documents-online-with-phone): Turn your physical paper paperwork, handwritten classroom notes, government application proofs, and receipts into professional, crisp PDFs using just your smartphone camera or webcam—with zero app store downloads.
- [How to Use EditPDFKit Privacy Vault for 100% Private Offline Document Management](https://www.editpdfkit.com/blog/use-privacy-vault-offline): Unlike traditional online PDF converters that transmit files to remote cloud servers, EditPDFKit features a built-in client-side Privacy Vault. Powered by your browser's isolated IndexedDB database, the Privacy Vault enables you to store processed PDFs, chain documents across tools without downloading or re-uploading, and wipe everything with a single click.
- [How to Split PDF Pages into Separate Files or Extract Selected Pages Free](https://www.editpdfkit.com/blog/split-pdf-pages-into-separate-files): Need to send only page 3 of a 50-page contract, or split a multi-chapter eBook into individual documents? EditPDFKit's Split PDF Studio lets you extract exact page ranges or burst all pages into individual PDFs in seconds, completely offline in your browser.
- [How to Convert PDF Tables to Editable Excel (XLSX) Without Messy Formatting](https://www.editpdfkit.com/blog/convert-pdf-table-to-excel-xlsx): Re-typing rows of numbers from PDF invoices, bank statements, or balance sheets into Excel is tedious and error-prone. EditPDFKit intelligently reconstructs table borders, columns, and numeric cells into clean, editable Microsoft Excel (.xlsx) spreadsheets.
- [How to Convert PDF Pages to High-Resolution JPG Images (300 DPI)](https://www.editpdfkit.com/blog/convert-pdf-pages-to-high-res-jpg): Need to insert a PDF flyer into a PowerPoint slide, post a certificate on social media, or submit single-page images on an exam portal? EditPDFKit converts PDF pages into crisp, ultra-high-resolution JPG images with selectable DPI and zero watermarks.
- [How to Make Scanned PDFs Searchable and Selectable with Free In-Browser OCR](https://www.editpdfkit.com/blog/make-scanned-pdf-searchable-free-ocr): When you scan a physical document, your computer sees it as a flat picture—meaning you cannot search (Ctrl+F), highlight, or copy the text. EditPDFKit's OCR Studio adds an invisible text layer over the scans, making every word searchable while preserving the original visual appearance.
- [How to Unlock Password-Protected PDFs and Remove Restrictions Online Free](https://www.editpdfkit.com/blog/unlock-password-protected-pdf-online): Received a PDF statement or work document that prevents you from printing, copying text, or making edits? With EditPDFKit's Unlock PDF tool, you can remove annoying permission restrictions and export a clean, permanently unlocked PDF in your browser.
- [How to Convert Word (DOCX) to PDF Without Formatting Shift or Font Changes](https://www.editpdfkit.com/blog/convert-word-docx-to-pdf-without-changes): Sending a Word document to a client or recruiter often leads to formatting glitches, missing fonts, and misaligned margins. Converting DOCX to PDF locks your fonts, line breaks, and page layout permanently so it looks flawless on every screen.
- [How to Convert WEBP and iPhone HEIC Photos to JPG Online Without Quality Loss](https://www.editpdfkit.com/blog/convert-webp-and-heic-to-jpg-online): Ever downloaded an image only to find it's a .webp file that your photo editor can't open, or transferred iPhone photos saved as .heic that your Windows PC won't display? EditPDFKit converts them to universal, high-quality JPGs in seconds.
- [How to Resize Signature to 140x60 Pixels and Under 20KB for Exam Forms](https://www.editpdfkit.com/blog/crop-and-resize-signature-transparent-png): Government recruitment portals (Standard Digital, Banking PO, Graduate, RRB, and Job Portal) strictly reject signature uploads that do not match exact pixel dimensions like 140x60 px or exceed 10KB-20KB. With EditPDFKit's client-side resizer, you can lock aspect ratios or dial in 140x60 px instantly.
- [How to Make Passport Size Photos with Clean White Background at Home Free](https://www.editpdfkit.com/blog/make-passport-photo-with-white-background-at-home): Need an urgent passport size photo for a visa, passport renewal, driving license, or exam registration? Instead of paying a studio, you can snap a selfie on your phone and replace the background with pure studio white (RGB 255, 255, 255) in 2 seconds.
- [How to Combine Academic Transcripts, Degree Certificates and IDs into One PDF](https://www.editpdfkit.com/blog/combine-academic-transcript-and-degree-into-single-pdf): Job application portals, university admission systems, and visa centers usually allow only a single PDF upload for 'Educational Documents'. If you have 6 separate academic transcripts and a degree certificate, EditPDFKit lets you merge and rearrange them in chronological order in seconds.
- [How to Sign PDF Contracts and Forms Electronically Without Printing or Scanning](https://www.editpdfkit.com/blog/sign-pdf-contract-electronically-without-printing): Printing a 20-page agreement just to sign the last page and scan it back is a huge waste of paper and time. With EditPDFKit's Edit PDF Studio, you can open any contract, draw your signature with your mouse or touchscreen, place official date stamps, and export a legally compliant PDF in under a minute.
- [How to Redact Sensitive Information and Black Out Text in PDF Permanently](https://www.editpdfkit.com/blog/redact-sensitive-information-from-pdf-permanently): Drawing a black highlight over text in basic viewers does NOT protect your data—anyone can copy and paste the underlying text right through the box! True redaction requires permanently deleting the underlying vector text and glyphs from the PDF file so it can never be recovered.
- [How to Remove GPS Location, Camera EXIF and Hidden Metadata from Photos Online](https://www.editpdfkit.com/blog/remove-exif-and-gps-location-from-photos): Every photo taken on an iPhone or Android phone automatically embeds hidden EXIF metadata—including your exact home GPS coordinates, device serial number, and timestamp. EditPDFKit strips all tracking metadata in your browser before you share photos online.
- [How to Convert Handwritten Study Notes and Book Pages into Clean White PDFs](https://www.editpdfkit.com/blog/convert-handwritten-notes-to-clean-pdf): Taking photos of notebook pages often results in dark shadow corners, yellow lighting, and curled page edges. With EditPDFKit's Document Scanner, you can snap your handwritten lecture notes, apply our Magic Contrast filter to turn paper pure white, and export clean, printable PDFs.
- [How to Compress Large PDF Documents Under 25MB for Email Attachments (Gmail & Outlook)](https://www.editpdfkit.com/blog/compress-large-pdf-for-email-attachment): Email providers strictly reject oversized documents: Gmail blocks attachments over 25MB, and Microsoft Outlook (Exchange) caps them at 20MB. EditPDFKit's client-side compression engine lets you shrink 50MB–100MB documents down to email-ready sizes without touching text sharpness or uploading sensitive business data to the cloud.
- [How to Rotate Upside-Down Scanned PDF Pages Permanently (Without Adobe Acrobat)](https://www.editpdfkit.com/blog/rotate-upside-down-scanned-pdf-pages-permanently): When scanning multi-page documents through automatic document feeders or smartphone apps, sheets often come out rotated sideways or inverted 180 degrees. Standard desktop viewers only temporarily rotate the on-screen display. With EditPDFKit Rotate Studio, you can permanently update the internal vector orientation matrix of single pages, odd/even pages, or entire files without re-encoding or losing text layers.
- [How to Convert Plain Text, Notes, and Markdown to Clean Printable PDF](https://www.editpdfkit.com/blog/convert-plain-text-and-markdown-to-clean-pdf): Printing or sharing raw text files (.txt) often leads to awkward line wraps, cut-off margins, and lack of visual hierarchy. EditPDFKit's Text to PDF Studio turns raw notes, code logs, and Markdown documents into cleanly paginated, professional A4 or US Letter PDFs with live preview, custom fonts, margins, and optional line numbers.
- [How to Add a Digital Signature to PDF Contracts Online Free (Legally Compliant)](https://www.editpdfkit.com/blog/sign-pdf-documents-online-free-legally-compliant): Printing out an entire lease or employment contract just to ink-sign the final page and scan it back is tedious and wastes paper. With EditPDFKit's Sign PDF tool, you can draw your signature using a trackpad, touchscreen, or mouse, type a cursive legal signature, or upload a photo of your paper signature, and stamp it cleanly onto any PDF page in seconds.
- [How to Black Out and Redact Sensitive Information in PDF Documents Permanently](https://www.editpdfkit.com/blog/black-out-and-redact-sensitive-information-in-pdf): Drawing a black rectangle over sensitive text in standard PDF viewers is extremely dangerous because the underlying text layer remains selectable, copyable, and searchable underneath. True redaction requires permanently deleting the underlying vector text glyphs and rasterizing that specific region. EditPDFKit provides true cryptographic sanitization 100% inside your browser.
- [How to Flatten Fillable PDF Forms & Lock Annotations Before Submitting](https://www.editpdfkit.com/blog/flatten-fillable-pdf-forms-and-lock-annotations): Have you ever filled out an official government or job application form, saved it, and later discovered the recipient received a blank document? This happens because interactive form fields (AcroForms/XFA) are stored as separate dynamic widgets that many mobile viewers, email previewers, and automated portal screeners cannot render. Flattening locks form inputs, checkmarks, and signatures permanently into the base visual page.
- [How to Add Unified Page Numbers to PDF Files (Page X of Y & Custom Formats)](https://www.editpdfkit.com/blog/add-page-numbers-to-pdf-documents-online): When you merge multiple reports, scanned certificates, and appendices into a single PDF, the individual page numbers become inconsistent or missing altogether. EditPDFKit's Page Numbers tool allows you to stamp unified, professional page numbering across any multi-page PDF document with custom positioning, formats (Page X of Y, 1/N), margins, and cover-page exclusions.
- [How to Add Confidential and Draft Watermarks to PDF Pages Online](https://www.editpdfkit.com/blog/add-confidential-and-draft-watermarks-to-pdf): Sending pitch decks to investors, draft contracts to clients, or mock exam papers to students requires copyright protection to prevent unauthorized redistribution. EditPDFKit's Watermark PDF tool lets you stamp diagonal semi-transparent text watermarks (like 'CONFIDENTIAL', 'DRAFT', or 'DO NOT COPY') or company logos across your PDF pages with exact opacity and angle controls.
- [How to Convert Excel (XLSX) to PDF Without Cutting Off Columns or Tables](https://www.editpdfkit.com/blog/convert-excel-spreadsheets-to-pdf-without-cutting-columns): Converting large Microsoft Excel spreadsheets (.xlsx or .xls) to PDF often results in a formatting nightmare: wide financial models and data tables get sliced down the middle, spilling 2 columns onto a second page. EditPDFKit's Excel to PDF tool automatically calculates table widths, fits columns onto single pages, and supports landscape orientation for clean, executive-ready PDF reports.
- [How to Convert PowerPoint (PPTX) Slides into Clean PDF Handouts](https://www.editpdfkit.com/blog/convert-powerpoint-presentations-to-pdf-handouts): Sharing raw PowerPoint files (.pptx) with clients or students frequently leads to missing custom font warnings, shifted text boxes, and formatting errors on devices without Microsoft Office installed. Converting your presentation to PDF freezes slide layouts into universal vector documents that look identical on iPads, Windows PCs, MacBooks, and Android smartphones.
- [How to Convert PDF Presentations into Editable PowerPoint (PPTX) Slides](https://www.editpdfkit.com/blog/convert-pdf-slides-back-to-editable-powerpoint): Have you ever lost your original PowerPoint source file and only had the exported PDF version left? Or received a client's presentation in PDF format and needed to tweak bullet points or update quarterly figures? EditPDFKit's PDF to PPT tool reconstructs slides into native, editable Microsoft PowerPoint (.pptx) presentations with editable text blocks and separable graphics.
- [How to Convert EPUB & MOBI eBooks into Printable PDF Documents](https://www.editpdfkit.com/blog/convert-epub-and-mobi-ebooks-to-printable-pdf): eBooks in EPUB or MOBI formats are great for e-readers like Kindle or Kobo, but they cannot be easily printed, annotated with PDF markup pens, or cited with fixed page numbers. EditPDFKit's eBook to PDF tool transforms dynamic reflowable digital books into beautifully paginated A4 or Letter PDFs with fixed page numbering, chapter breaks, and table of contents.
- [How to Rotate Sideways Photos & Scanned Certificates Upright Permanently](https://www.editpdfkit.com/blog/rotate-sideways-photos-upright-permanently): Smartphone cameras frequently misread orientation sensors, causing photos taken in portrait mode to save as sideways landscape images. When you upload these sideways images to job portals, passport portals, or exam applications, they get rejected. EditPDFKit's Rotate Image tool permanently corrects the pixel matrix and resets EXIF orientation flags without re-compressing or degrading image quality.
- [How to Combine Multiple Photos Side-by-Side or Vertically into One Image](https://www.editpdfkit.com/blog/combine-multiple-photos-into-one-image-side-by-side): Need to combine the front and back of your Driver's License or ID card onto a single image for an online application? Or want to create a side-by-side 'Before & After' picture for social media without fiddling with complex graphic software? EditPDFKit's Merge Images tool lets you stitch 2 or more photos horizontally, vertically, or in a grid with customizable borders, spacing, and background colors.
- [How to Annotate, Blur Sensitive Areas, and Markup Screenshots Online](https://www.editpdfkit.com/blog/annotate-blur-and-markup-photos-online): Sharing a screenshot of a software bug, bank transfer receipt, or chat conversation often requires two things: highlighting an important section with an arrow, and blurring out sensitive personal details like account numbers or email addresses. EditPDFKit's Edit Image Studio gives you a full suite of markup pens, shapes, text callouts, and privacy blur tools directly in your browser with zero installations.
- [How to Compress a PDF to Under 1MB Online Free (Without Blurry Text)](https://www.editpdfkit.com/blog/compress-pdf-to-under-1mb-online-free): Government employment portals, scholarship forms, and email systems often reject documents exceeding 1MB or 2MB. EditPDFKit enables you to compress multi-megabyte PDFs down below 1MB in your web browser while preserving razor-sharp text and crisp photographic assets without watermarks or server uploads.
- [How to Add Watermarks to PDF & Images Online Free (Batch Text & Logo Stamping)](https://www.editpdfkit.com/blog/watermark-pdf-and-images-online-free-batch): Prevent unauthorized distribution and copyright theft by stamping confidential text watermarks or company logos across your PDF documents and photo files. EditPDFKit provides full control over font size, color, opacity, diagonal rotation, and tiled repeat patterns—100% free with zero cloud uploads.

## Core Architecture & Privacy Guarantees

- **100% Client-Side In-Browser Execution**: Files are processed using WebAssembly, Canvas 2D, and Web Workers directly on the user device. No document is ever uploaded to a remote server.
- **100% Offline Capability (PWA & Service Worker)**: The platform functions completely offline once loaded. Users can merge, compress, protect, and edit documents without an active internet connection.
- **Universal Tool Chaining**: Files cached in the local IndexedDB Privacy Vault can be immediately passed into another tool (e.g. compressing multiple PDFs and directly merging them) with zero re-uploading or intermediate downloads.
- **Zero Registration & Unlimited Free Usage**: All tools are fully available without paywalls, subscriptions, or watermarks.
- **Full Markdown & Machine Documentation**: Full detailed documentation is available at [https://www.editpdfkit.com/llms-full.txt](https://www.editpdfkit.com/llms-full.txt).