Comparing a PDF to a Word document requires a two-step approach since the formats are different. Here's the fastest way to compare them visually and find every difference.
Go to pdfeditor.onl/convert-pdf and convert your Word (.docx) file to PDF. This gives you two PDFs in the same format, ready for comparison.
Tip: Use the same PDF renderer (the same browser and tool) to convert both documents so that fonts and layout are consistent before comparison.
Go to pdfeditor.onl/compare-pdf. Upload the original PDF as File A and the converted Word-to-PDF as File B. Click Compare.
The diff highlights every visual difference between the two versions — text changes, formatting shifts, added or removed content. Use Side by Side, Overlay, or Diff view to inspect each change.
Click Download All Pages as PDF to get a complete diff report showing all differences across all pages.
Converting Word to PDF may introduce minor rendering differences in font spacing and line breaks. This is normal — focus on the red-highlighted regions that clearly indicate content changes rather than very small pixel shifts at word boundaries.
Not directly — the comparison tool works on two PDFs. Converting the DOCX to PDF first is required. The entire process takes under 2 minutes.
Yes — both the converter and the compare tool are completely free with no account required.