Features

Everything Unique PDF can do

Twenty PDF tools and Unique AI in one free Chrome extension. Every one of them runs in your browser, so your files are never uploaded.

Unique AI

Chat with your PDFs and get instant summaries.

Chat with PDF

Ask questions about any PDF in plain language. Unique AI answers in seconds and shows the page each answer comes from, so you can check the source with one click.

  • Clickable page references and a sources list on every answer
  • Follow-up questions, suggested questions, stop and regenerate
  • Replies in English, Spanish or Japanese; export the chat as Markdown

AI Summary

Get the gist of a long report, paper or manual in seconds. Choose key points, a short overview, a teaser or a single headline.

  • Short, medium or long; summarize all pages or a range
  • Tell it what to focus on, such as deadlines or costs
  • Copy the summary or download it as a Markdown file

Organize

Merge, split and rearrange documents and pages.

Merge PDF

Combine several documents into one file. Drag the files into order or use the arrow buttons, then save a single PDF.

  • Any number of files, in any order
  • Drag and drop or arrow buttons to arrange them
  • Merge the same file more than once if you need to

Split PDF

Break a document into separate files: one per page, custom ranges, equal parts, or new files that start at the pages you click.

  • Page ranges like 1-3, 5, 8- with instant validation
  • Several files download together as a ZIP archive
  • Links between pages are kept inside each part

Organize pages

A single workspace for pages from several documents. Reorder by dragging, rotate and delete pages, then save one new file.

  • Thumbnails with source colours for each file
  • Keyboard drag and drop with screen-reader announcements
  • Extract a selection as a separate PDF

Rotate PDF

Turn individual pages, a selection or the whole document by 90 or 180 degrees.

  • Select pages with click, Shift-click or keyboard
  • See the result in the thumbnails before saving

Reorder pages

Drag page thumbnails into a new order, or reverse the whole document with one click.

  • Mouse, touch and keyboard drag and drop
  • Bookmarks and forms stay intact

Delete pages

Remove the pages you do not need. Deleted pages are removed from the file completely, along with their annotations and hidden data.

  • Confirmation before deleting
  • Byte-level checks in our tests prove deleted content is gone

Extract pages

Save selected pages as one new PDF, or as separate files.

  • Pick pages by clicking or typing a range
  • Only data from the chosen pages is kept

Convert

Compress PDFs and convert between PDFs and images.

Compress PDF

Make large documents smaller so they are easier to email and share. Images are optimized while text and drawings stay sharp and searchable.

  • Choose a light, balanced or strong level
  • See the size before and after
  • Optional maximum compression turns pages into images, with a clear warning

Images to PDF

Turn photos, scans and screenshots into a clean PDF. Choose the page size, orientation and margins, and reorder images before you save.

  • Phone photos are turned the right way up automatically
  • JPEG photos are embedded without re-compression
  • Fit to page or keep the original size

PDF to images

Save pages as high-quality images at the resolution you need.

  • From 72 to 600 DPI
  • One image, or several in a ZIP archive

Edit

Add text, drawings, signatures, watermarks and page numbers.

Edit PDF

Add text, freehand drawings, highlights, rectangles, ellipses, lines, arrows and pictures to any page, with undo, redo and zoom.

  • Move, resize and style every object
  • Works correctly on rotated pages
  • Adds new content; it does not rewrite existing text

Sign PDF

Draw your signature once and place it anywhere on the document. The signature is saved as crisp vector lines.

  • Resize and move it before saving
  • Undo and redo while you place it

Watermark

Stamp text or an image across pages with full control over transparency, angle, position and tiling.

  • Live preview
  • Put it behind or in front of the content
  • Apply to all pages or a selection

Page numbers

Number pages in several styles, choose the corner or centre, the start number and which pages to skip.

  • Formats like "1", "Page 1" and "Page 1 of 12"
  • Live preview on your document

Security

Protect, unlock, redact and clean up documents.

Protect PDF

Encrypt a document with a password using AES-256, and decide whether others may print, copy or change it.

  • Password strength meter
  • Optional separate permissions password

Unlock PDF

Remove the password from a document when you know it. Unique PDF never guesses or bypasses passwords.

  • Works with files made by other apps
  • Restrictions need the owner password

Redact PDF

Remove sensitive information for good. Search for words and numbers or draw boxes, and the content underneath is removed from the file, not just covered.

  • Automatic verification after redacting
  • Removes hidden information such as metadata and attachments
  • Optionally keeps the rest of the page searchable

Edit metadata

View, edit or remove document details such as title, author, subject and keywords.

  • Remove all metadata in one click
  • Keeps the XMP metadata in sync

And everything around them

Small details that make everyday PDF work faster.

Drag and drop anywhere

Drop files on the home screen for tool suggestions, or straight onto a tool card.

Command palette

Press Ctrl+K (Cmd+K on Mac) to jump to any tool or page by name.

Quick-access popup

Open favourite tools from the toolbar, or press Alt+Shift+U.

Light and dark themes

Choose light, dark or match your system.

Recent files

An optional list of recent tasks — file names and sizes only, never contents.

Works offline

Every PDF tool works without an internet connection once installed.

Password-protected PDFs

Enter the password once and use the document in any tool. No guessing, no bypassing.

Accessible

Keyboard operable, screen-reader friendly and tested against WCAG 2.2 AA.

Your next PDF, done in seconds.

Join people who chat with, edit and sign PDFs without uploading them anywhere. Free, private and ready in one click.

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