Compare PDF Files
Upload two versions and see exactly what changed, with the changes that matter most first.
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- Word-by-Word Compare
- Ranked by Importance
- Scanned PDFs (OCR)
Compare Two PDF Files and See What Really Changed
PDFezy compares two versions of a PDF word by word and shows you every difference. The comparison itself uses no AI, so every mark is a real change. AI then groups the changes, names them and ranks them, so edits to money, dates and obligations are flagged High and appear first. Click any change to jump to it in both files, then download a change report. Scanned PDFs are read with OCR, and free use covers the first 50 pages of each file.
How to Compare Two PDF Files in 3 Steps
- 1
Upload both versions
Put the original on the left and the revised version on the right.
- 2
We compare every word
The exact text is compared first. AI then names each change and ranks it.
- 3
Review what changed
Click a change to jump to it in both files, then download the change report.
The Changes That Matter, First
Long documents can have hundreds of small edits. PDFezy sorts them so you don't miss the important ones. Changes to money, dates and obligations are flagged High and go to the top of the list.
Each change also gets a short name, such as “Payment term changed from 30 to 45 days”, so you can scan the list before reading the pages.
12 changes3 High5 Medium4 Low
HighWhat gets flagged High
- A new priceMonthly fee $1,200 → $1,450
- A moved deadlineDelivery by 1 March → 15 March
- An added duty“Supplier shall provide weekend support”
See a Comparison Report
Two versions of a short service agreement, compared. The money and the notice period are at the top.
What changed · 4 changes
- HighMonthly fee changed
$1,200→$1,450p. 2 - HighNotice period changed
30 days→60 daysp. 4 - MediumSupport hours extended+ including weekendsp. 3
- LowWording changed
shall→willp. 5
Page 2 · both files
Original
The Client will pay a monthly fee of $1,200 on the first day of each month.
Revised
The Client will pay a monthly fee of $1,450 on the first day of each month.
What PDFezy Compares
Shown as a change
- Words added, removed or replaced
- Changed numbers, amounts and dates
- Edited clauses and sentences
- Changes on scanned pages, read with OCR
Not shown
- Layout, images and fonts
- Text that only moved to another line or page
Need to compare images or design? This tool focuses on the text.
Why Use PDFezy to Compare PDFs
Exact Differences
Every change is the exact text difference, never guessed by AI.
What Matters First
Money, dates and obligations are flagged as High so you check them first.
Reads Scanned PDFs
Built-in OCR reads scanned pages first.
Jump to Any Change
Click a change to see it in both files side by side.
Change Report
Download the list of changes to share or file.
Plain-English Change Names
Each change is described in a short sentence.
Line and Page Breaks Ignored
Text that only moved to another line or page isn't flagged.
Free for 50 Pages
The first 50 pages of each file are compared free.
When to Compare PDF Files
Any time two versions of the same document need checking, especially when money or deadlines are involved.
Contracts and agreements
See exactly what the other side changed in a new draft before you sign.
Leases and offer letters
Check rent, dates and terms between versions.
Policies and handbooks
Find what changed in this year's version.
Reports and financial statements
Spot changed figures between drafts.
Academic and research papers
Compare a revision with the submitted version.
Tenders, proposals and specs
Check that agreed edits were made and nothing else changed.
Tips for an Accurate Comparison
- 1
Put the older version on the left (Original) and the newer one on the right (Revised).
Then additions show as added, not removed.
- 2
Compare two versions of one document.
Two different contracts will show almost everything as changed.
- 3
For Word files, convert both with Word to PDF first.
Both files then go through the same conversion.
- 4
Check the High changes first, then scan the rest.
That's where money, dates and obligations are.
Found something to fix? Make the edit with Edit PDF, or turn the file into a document with PDF to Word.
PDFezy vs Other Ways to Compare PDFs
Every tool shows you the differences. PDFezy also tells you which ones matter.
| Feature | PDFezy | PDF24 | Draftable (free online) |
|---|---|---|---|
| Word-by-word text differences | Yes | Yes | Yes |
| Changes ranked by importance | Yes, High first | Not stated | Not stated |
| A plain-English name for each change | Yes | Not stated | Not stated |
| Change list, click to jump | Yes | Not stated | Yes |
| Downloadable change report | Yes | Not stated | Export to PDF |
| Scanned PDFs (OCR) | Yes, free online | Not stated | Paid desktop versions |
Compare PDF FAQs
How do I compare two PDF files?
It takes three steps:
- Upload the original on the left and the revised version on the right.
- Click Compare files.
- Review the changes, starting with the ones marked High.
Is it free to compare PDFs?
Yes. Free use compares the first 50 pages of each file.
Does AI decide what changed?
No. The two files are compared word by word without AI, so every mark on the page is a real difference. AI only groups the changes, names them and ranks how important they are.
How are changes ranked?
Changes to money, dates and obligations are flagged High, so they appear first. Every change also gets a short name.
What is a PDF diff?
A list of the exact text differences between two PDFs. PDFezy adds a name and an importance level to each.
Are changes in layout, images or fonts shown?
No. PDFezy compares the text. Text that only moved to another line or page is not counted as a change.
Can I compare scanned PDFs?
Yes. Built-in OCR reads scanned pages first. To make a scan searchable on its own, use PDF OCR.
Can I download the results?
Yes, as a change report.
Is it good for comparing contracts?
Yes. Changes to money, dates and obligations are flagged first. Always have important contracts reviewed by a professional.
Can I compare Word files?
Convert both to PDF first with Word to PDF, then compare them here.
Need another format?
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