Compare Two PDF Files

Spot every wording change between two versions, side by side.

Accepts PDFOutputs TXTUp to 2 filesNo sign-up required

Drag files here, or click to browseSupports PDF · up to 2 files · 50MB per file

How it works

1. Upload your file

Drag and drop or choose a PDF file from your device. You can add up to 2 files at once. Everything is checked against its real file type before processing starts.

2. We process it

Your file runs through an isolated job dedicated to Compare PDF, with clear progress so you always know what stage it's at.

3. Download the result

Get your finished TXT file with one click. The original upload and the result are deleted automatically afterward.

What is Compare PDF?

Compare PDF takes two versions of a document and shows the wording differences between them, line by line. It works on the extracted text, so it is ideal for spotting edits between drafts.

Common uses

Reviewing contract revisions. See exactly which clauses changed between two versions.
Checking edited documents. Confirm that only intended changes were made.
Academic drafts. Compare revisions of a paper or thesis.
Policy updates. Spot what changed in a new version of a policy.

Compare PDF at a glance
Input	Two PDFs
Output	Text report of differences
What is compared	Extracted text, line by line
Not compared	Visual layout, images and styling
Size limit	50 MB per file
Sign-up	Not required

Tips for best results

Upload the older version first and the newer one second.
Both PDFs need real text; scans need OCR PDF first.
It will not flag layout or image changes.
Your original files are not modified.

Guides for this tool

How to compare two PDFs and find the differences

Your file stays private

Compare PDF runs in an isolated processing job. Your upload and the generated result are deleted automatically after your download window ends — we don't keep copies, and download links are random, single-purpose, and expire.

Frequently asked questions

How do I compare two PDF files?

Upload both PDFs to Compare PDF and download the report of text differences.

Does it compare images and layout?

No. It compares extracted text only.

Can it compare scanned PDFs?

Run OCR PDF on them first so there is text to compare.

Are my files changed?

No. They are only read to produce the report.

Is it free?

Yes, free with no sign-up.

Do I need to sign up to use Compare PDF?

No — this tool works without creating an account. There is no sign-up option at all right now.

What file types does Compare PDF accept?

Compare PDF accepts PDF files and produces a TXT result, up to 2 files per job.

Will my formatting or content be preserved?

Your original files are not modified at all — this tool only reads and compares them to produce a report.

What happens to my file afterward?

Your file is processed in an isolated job and deleted automatically, along with the result, once your download window ends.

Does Compare PDF flag formatting changes, or only text?

It focuses on wording changes between the two versions — added, removed, or edited text — side by side.