Summarize what changed between two PDFs 0 uses
Upload two versions of a PDF and get a plain-language summary of what changed.
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✨ AI: AI diff summary — sign in to use
Sign in- Explains changes in plain language, not just line-by-line diffs
- Upload the original and the revised PDF
- Sign in to use — connect your own API key
How it works
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Sign in — AI features run on your account, not anonymously.
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Pick a provider and model, or use your own API key.
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Upload your PDF (or paste text) and run Summarize what changed between two PDFs.
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Read or copy the result.
Why use this tool
Every PDF task, one place
Merge, split, compress, convert, sign, and more — no need to juggle separate apps for each job.
Private by default
Most tools process your file entirely in the browser — it's never uploaded. When a conversion needs the server, the file is deleted within the hour.
Works on any device
Runs in the browser on Windows, Mac, Linux, iOS, and Android — nothing to install, nothing to trust but the tab.
Fast by design
No queues and no desktop app to wait on — most jobs finish in a few seconds, right where you are.
Convert to and from any format
Move between PDF, Word, Excel, PowerPoint, images, and HTML — output stays true to your original formatting.
Free, always
Every tool here is free to use, with no watermarks, page limits, or forced trial period.
Frequently asked questions
From the blog
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The Complete Guide to Managing PDFs Online Without Installing Software
Merge, split, compress, convert, and rotate PDFs directly in your browser — no installs, no watermarks, no account. Here's how to handle every common PDF task in minutes.
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