Compare PDFs — Find Differences Between Two PDF Documents

Find Every Change Between Two PDFs

Updated a contract and need to see what changed? Received a revised document and want to verify the edits? MyPDF's PDF Compare tool highlights every difference between two PDF versions.

How It Works

Step 1: Upload Both PDFs

Open the Compare PDFs tool and upload the original and the revised PDF.

Step 2: Compare

The tool analyzes both documents and identifies:

• Added text — highlighted in green


• Removed text — highlighted in red with strikethrough


• Changed text — highlighted in yellow


• Moved text — indicated with arrows or markers

Step 3: Review the Diff Report

Download or view the comparison report showing all differences page by page.

Use Cases

• Contract review — verify only agreed changes were made
• Legal document versions — track amendments across revisions
• Academic paper review — see what an author changed between drafts
• Policy updates — identify what changed in updated company policies
• Translation verification — compare original and back-translated documents
• Quality assurance — verify a document wasn't altered after signing

Text Compare vs Visual Compare

Method	What It Checks	Best For
Text compare	Extracts and diffs text content	Contracts, reports, any text-based document
Visual compare	Pixel-by-pixel overlay	Designs, scanned documents, PDFs with images

Tips

1. Compare text-based PDFs — this tool works best with PDFs containing real text (not scanned images)
2. For scanned PDFs — OCR both documents first, then compare
3. Page count differences — if pages were added or removed, the tool aligns matching content automatically
4. Save the diff report — keep the comparison as evidence of what changed

Frequently Asked Questions

Can I compare PDFs with different page counts?

Yes — the tool handles inserted and deleted pages by matching content across pages.

Does it work with scanned PDFs?

Scanned PDFs contain images, not text. OCR them first to extract text, then compare.

Can I compare more than two PDFs?

Compare two at a time. For three versions, compare v1 vs v2, then v2 vs v3.

Related Tools

• OCR PDF — Make scanned PDFs comparable
• Edit Metadata — Check document modification dates
• PDF Info — View document properties and dates
• Text Diff — Compare plain text files