How to Compare Two PDF Files to Find Differences (Free)
Compare two versions of a PDF to find what changed — additions, deletions, and modifications highlighted. Free, no upload.
FixMyPDF's PDF comparison tool highlights what changed between two versions of a document — useful for contract revisions, document review, and version tracking.
Steps to Compare PDFs
Go to fixmypdf.in/tools/compare-pdf. Upload the original PDF (version 1). Upload the revised PDF (version 2). Click Compare. The tool highlights additions, deletions, and modifications.
What Gets Highlighted
Added text: shown in green. Removed text: shown in red. Changed text: shown in yellow. Unchanged content: normal appearance.
Use Cases
Contract review: compare the redlined version against the previous draft. Legal documents: verify that only approved changes were made. Academic papers: track revisions between review rounds. Policy documents: audit what changed between published versions.
Limitations
PDF comparison works best when both documents contain searchable text (not scanned images). Scanned image PDFs require OCR before text comparison is meaningful.
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