PDF Compare | Check Differences Between Two PDFs
Compare two PDF files page by page to spot text, page count, layout, or structural differences before sharing a final version.
Compare Two PDF Versions
Upload two PDF files and compare them page by page to spot text differences, changed layouts, missing pages, or version mismatches.
Use Comparison as a Review Aid
PDF comparison can help catch changes, but it should not replace manual review for legal, financial, medical, or final publication documents.
When PDF Comparison Helps
Use it for contracts, revised reports, invoices, proposals, policy documents, exported designs, or any PDF where version changes matter.
About This Tool
PDF Comparator highlights the differences between two PDF documents side by side, marking added, removed, and changed text so you can review revisions without reading both documents in full.
When to Use It
Use this when reviewing a revised contract to see what changed from the previous version, when checking that a translated document matches the original structure, or when auditing edits made to a policy document.
How to Use
- Upload the original PDF as document one.
- Upload the revised PDF as document two.
- Click Compare to process both files.
- Review the highlighted differences in the output view.
Frequently Asked Questions
Does it compare images inside PDFs?
The comparator focuses on text content. Image changes are flagged as a difference but detailed image comparison is not provided.
Can it compare scanned PDFs?
Scanned PDFs store pages as images rather than text. Run them through OCR PDF first to create a searchable text layer before comparison.
What colour are the highlighted changes?
Added text is typically shown in green, removed text in red, and moved text in a different colour depending on the tool settings.