PDF Modern
100% Free · No Upload · Unlimited Use

94+ modern PDF tools that never leave your browser

Merge, split, compress, convert, sign, OCR, edit, protect — every tool runs locally on your device. Fast, private and free forever.

✅ No signup✅ No watermarks✅ No size limits✅ Works offline after first load

All PDF tools

Search or filter by category — every tool is 100% client-side.

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Merge PDF

Organize

Combine multiple PDFs into one file

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Split PDF

Organize

Extract pages or split into multiple files

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Compress PDF

Optimize

Reduce PDF file size while keeping quality

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PDF to JPG

Convert

Convert each PDF page into a JPG image

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JPG to PDF

Convert

Convert JPG/PNG images into a single PDF

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Rotate PDF

Edit

Rotate one, several, or all pages of a PDF

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Organize PDF

Organize

Reorder or delete pages with drag & drop

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Watermark PDF

Edit

Add a text watermark to every page

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Add Page Numbers

Edit

Insert page numbers in any position

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Protect / Unlock PDF

Security

Add or remove a password from a PDF

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PDF Viewer

Edit

Open and read any PDF in your browser

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Sign PDF

Edit

Draw, type or upload a signature and place it on your PDF

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Edit PDF

Edit

Add text, images and shapes to any PDF page

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OCR PDF

Convert

Make scanned PDFs searchable with text recognition

Redact PDF

Security

Black-out sensitive areas on PDF pages

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Crop PDF

Edit

Trim margins or crop pages to a custom size

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PDF to PNG

Convert

Convert each page of a PDF to a lossless PNG image

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PDF to Text

Convert

Extract all text from a PDF as a .txt file

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Extract Images

Convert

Pull every embedded image out of a PDF

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HTML to PDF

Convert

Convert HTML or Markdown into a PDF document

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Unlock PDF

Security

Remove a known password from a protected PDF

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Flatten PDF

Edit

Flatten form fields and annotations into the page

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Reverse PDF

Organize

Reverse the order of all pages in a PDF

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Resize PDF

Optimize

Change every page to A4, Letter or another standard size

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N-up PDF

Organize

Place 2, 4 or 6 pages on a single sheet

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Edit PDF Metadata

Edit

View and edit PDF Title, Author, Subject and Keywords

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PDF to Markdown

Convert

Extract text from a PDF as a Markdown (.md) file

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Grayscale PDF

Optimize

Convert a colour PDF into black & white

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Compare PDF

Edit

Find text differences between two PDFs

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Header & Footer

Edit

Add custom header and footer text to every page

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Bates Numbering

Edit

Add legal-style sequential numbers (e.g. ABC000001)

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Stamp PDF

Edit

Place a logo or image stamp on every page

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Scan to PDF

Convert

Use your camera to scan documents into a PDF

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CSV to PDF

Convert

Convert a CSV spreadsheet into a paginated PDF table

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Delete PDF Pages

Organize

Quickly remove pages by number or range

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Repair PDF

Optimize

Try to fix a damaged or unreadable PDF file

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Text to PDF

Convert

Turn plain text or notes into a clean PDF

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Search PDF

Edit

Find every occurrence of a word or phrase

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Blank PDF Generator

Convert

Make blank, lined, grid or dot-grid PDFs

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Booklet PDF

Organize

Re-impose pages for folded-booklet printing

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Invert PDF Colours

Edit

Make a dark-mode (inverted) version of any PDF

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PDF Contact Sheet

Organize

One overview PDF showing thumbnails of every page

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Markdown to PDF

Convert

Convert Markdown notes into a styled PDF

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Mirror PDF

Edit

Flip pages horizontally or vertically

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Odd / Even Split

Organize

Separate odd and even pages into two PDFs

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PDF Word Counter

Edit

Count words, characters and reading time

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PDF Outline Viewer

Edit

View and export the bookmarks (TOC) of a PDF

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Slideshow PDF

Convert

Turn images into a 16:9 presentation PDF

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PNG to PDF

Convert

Convert PNG images into a single PDF

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WebP to PDF

Convert

Convert modern WebP images to PDF

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PDF to WebP

Convert

Export every PDF page as a WebP image

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Interleave PDFs

Organize

Alternate pages from two PDFs (1A,1B,2A,2B…)

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Remove Blank Pages

Optimize

Auto-detect and delete blank PDF pages

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Add PDF Background

Edit

Add a coloured or watermark background to pages

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PDF Checksum

Security

Verify a PDF with SHA-256 / SHA-1 / SHA-512

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PDF Inspector

Edit

Detailed analysis of any PDF file

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Adjust PDF Margins

Edit

Add or expand white space around pages

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Swap PDF Pages

Organize

Swap any two pages in a PDF

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Duplicate PDF Pages

Organize

Repeat selected pages N times

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Fill PDF Form

Edit

Type into PDF form fields and download

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Highlight PDF

Edit

Add yellow highlights to any PDF region

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Annotate PDF

Edit

Add text notes & arrows on top of pages

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Add PDF Border

Edit

Add a decorative frame around every page

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Split PDF by Size

Organize

Auto-split PDF into chunks under N MB

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Split by Bookmarks

Organize

Split a PDF at each outline / bookmark

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Passport Photo Sheet

Convert

Tile passport photos on a 4×6 print sheet

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Invoice Generator

Convert

Create professional PDF invoices in seconds

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Extract Pages

Organize

Pull selected pages into a new PDF

Insert PDF

Organize

Insert another PDF at a specific page

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Add Cover Page

Organize

Prepend a styled cover page to your PDF

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Business Card Sheet

Convert

Print 10 business cards on one A4 / Letter page

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Address Label Sheet

Convert

Print address labels (Avery 5160 / L7160)

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Envelope Printer

Convert

Print a single addressed envelope

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Certificate Generator

Convert

Bulk-create certificates from a name list

Smart Edit PDF

Edit

Edit PDF text in real time, like a Word document

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PDF to CSV

Convert

Pull tables out of a PDF as CSV

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PDF to SVG

Convert

Render every page as a crisp SVG

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SVG to PDF

Convert

Combine SVG files into one PDF

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BMP to PDF

Convert

Convert Windows bitmap files to PDF

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GIF to PDF

Convert

Save GIF images as PDF pages

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PDF to RTF

Convert

Extract text as a Rich Text Format file

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Draw on PDF

Edit

Freehand draw, sketch and whiteboard on a PDF

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Image Stamp

Edit

Stamp a logo or seal on every page

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Apply Letterhead

Edit

Overlay a letterhead PDF on every page

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Generate Table of Contents

Organize

Build a ToC page from your PDF outline

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Scale Page Content

Edit

Scale content up or down by percentage

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Center on New Size

Organize

Re-paper to A4/Letter and center the content

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Split Every N Pages

Organize

Break a PDF into fixed-size N-page chunks

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Keep First Page

Organize

Extract just the first page (cover)

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Keep Last Page

Organize

Extract just the last page

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Rotate Specific Pages

Edit

Rotate individual pages independently

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Auto-Trim Whitespace

Optimize

Auto-crop blank margins from every page

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Anonymize PDF

Security

Strip author, metadata and form data

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Mail-Merge PDF

Convert

CSV + template → one personalised PDF per row

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Truly private

Your files never get uploaded. Everything happens in your browser using WebAssembly.

Lightning fast

No server round-trips. Files are processed at the speed of your CPU, not your connection.

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Free & open

No signup, no watermarks, no daily limits. Hosted on Cloudflare Pages with unlimited bandwidth.

How it works

No installation, no account, no server. Just open a tool, drop your file and download the result.

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1. Open a tool

Pick any of the 94+ PDF utilities. They all open instantly in your browser tab without any plugin or extension.

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2. Drop your file & adjust settings

Drag and drop your PDF (or image) onto the tool. Set options like page range, quality level or watermark text — then click the action button.

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3. Download your result

Processing is instant because it runs on your own CPU. Your browser prompts you to save the file — nothing is sent anywhere.

Why choose a browser-based PDF tool?

Your documents stay private

Most popular online PDF converters work by uploading your file to a remote server, processing it there and sending back the result. That means a copy of your document — potentially containing sensitive contracts, tax returns or personal IDs — passes through a third-party infrastructure you cannot audit. PDF Modern eliminates that risk entirely: every operation executes locally in your browser tab using WebAssembly, so your data never leaves your machine.

No limits, no paywalls

Server-based services need to throttle usage to control costs — hence the daily limits, file-size caps and premium tiers. Because PDF Modern offloads all computation to your device, there is no server bill to recoup. Every tool is free, unlimited and requires no signup. You can merge a 500-page book and a 1 MB flyer in the same session without hitting any ceiling.

Works on any device, even offline

PDF Modern is a Progressive Web App (PWA). After your first visit, the core libraries are cached on your device. This means you can return to the site and process files even without an internet connection. It runs equally well on Windows, macOS, Linux, Android and iOS — anything with a modern web browser.

Instant processing speed

When you use a server-based tool you wait for the upload, the queue, the processing and the download. With PDF Modern the only bottleneck is your local CPU, which is typically much faster than a shared cloud VM. A 50-page PDF is split or merged in under a second on most modern laptops.

Frequently asked questions

Are the PDF tools really free?

Yes — 100% free, unlimited use, no account required and no watermarks. PDF Modern is a static site with no server costs to pass on.

Do my files get uploaded to a server?

No. Every tool runs entirely inside your web browser using WebAssembly. Your PDF files never leave your device. Nothing is transmitted, stored or logged.

Is there a file size limit?

There is no software-imposed limit. The practical ceiling is your device's available RAM. Most modern computers handle PDFs of several hundred megabytes without any issue.

Which browsers are supported?

All modern browsers are supported: Chrome, Edge, Firefox, Safari and Brave. We recommend keeping your browser up to date for the best WebAssembly performance.

Can I use these tools on mobile?

Yes. The site is fully responsive and works on Android and iOS. For large files you may get better performance on a desktop or laptop.

Are the tools GDPR-compliant?

Yes. Because no personal data or file content is ever uploaded, there is nothing to store, share or delete. See our Privacy Policy for the full details.

How do I report a bug or request a feature?

Email us at [email protected] or visit the Contact page. We read every message and typically reply within 1–2 business days.

Does PDF Modern work offline?

After your first visit the core libraries are cached by your browser. You can then use most tools without an active internet connection.