Ignore spacing
Normalize spacing and line-break differences during text comparison.
This reduces formatting noise but can hide whitespace changes that matter in code or identifiers.Compare PDF
Spot added and removed text between an original PDF and a revised copy. Review highlighted differences side by side and download an HTML comparison report.
Drop your PDF files here
Start with at least 2 files. You can add more later.
Files stay on your device No sign-up Free to use
How it works
Place the earlier version first
Add the original PDF followed by the revised PDF.
Choose text normalization
Choose whether to ignore spacing or letter-case differences.
Review differences against the originals
Compare the files and review the highlighted text changes.
Compare PDF
Security
Spot the text changes between two versions of a document
Review wording changes between policy drafts
Two policy drafts have small wording changes. Put the earlier version first and the revised version second. Load the earlier version first. Leave spacing normalization on for prose, but turn case normalization off when capitalization affects the wording.
✓ Review each highlighted change against the source pages, including numbers and punctuation.Make it work for your document
Options after selecting a fileIgnore case
Treat upper and lower case as equivalent.
Enable only when capitalization changes are irrelevant to your review.Frequently asked questions
The details, when you need them.
Will it detect changed images or formatting?
No. This tool compares extracted text, not the full visual appearance.
Can I save the comparison?
Yes. Download the HTML report to review the highlighted text differences.
Focus on wording changes
This comparison reads extractable text rather than comparing page pixels. It is useful for reviewing changed paragraphs, updated labels or revised numbers. It does not detect every visual difference, such as a changed photo, color or page layout. Use side-by-side visual review when those changes matter.
Make sure the inputs are comparable
Check which file is labeled Original and which is Revised; use Swap if they are reversed. Scans may have no text unless OCR has been applied. Different OCR results can create apparent wording changes that are recognition errors. The report supports review but should not be treated as a complete audit of all document changes.
Text differences only
This compares extracted text, not visual layout, image changes or a legal redline. Scans require a usable text layer.
Image changes are missing from the report
The comparison operates on extracted text rather than page pixels. Inspect illustrations, signatures and layout side by side in the originals.