compare

Compare PDF

Find text-level differences between two PDFs

About this tool

Spot the differences between two versions of a PDF. We extract text from both files and produce a diff report listing lines unique to each file. Useful for tracking edits in legal documents or contracts. Note: this is text-level diff only — visual changes, formatting, or repositioned text will not be detected.

Why use a compare pdf tool?

ShrinkTo's tools run entirely in your browser using modern JavaScript libraries. That means your files never leave your device — no server uploads, no third-party cloud, no data retention. The processing is fast, the workflow is simple, and your privacy is preserved by design.

Common use cases

Quick local edits

Make small changes without installing software.

Privacy-first workflow

Sensitive documents stay on your device.

No-signup convenience

Use immediately — no account required.

Cross-platform

Same tool works on phone, tablet, laptop, desktop.

How to use this tool

  1. Upload your file. Drag-and-drop or click to browse.
  2. Configure options. Set the parameters you need.
  3. Run the tool. Processing happens in-browser.
  4. Download result. File ready to use.

Frequently asked questions

Are my files uploaded?
No. Everything runs in your browser locally.
Is this really free?
Yes — no signup, no watermarks, no caps.
Will it work on my phone?
Yes — any modern browser supports our tools.
What about file size limits?
Up to 50 MB per file. Browser memory is the practical ceiling.
How is privacy guaranteed?
Open your DevTools Network tab during use — you'll see zero outbound data.
verified
Privacy by design.

All processing happens in your browser using JavaScript libraries. Your files never reach any server. No accounts, no tracking, no data retention.