Summary
Summarize Long PDFs
Turn long reports, papers and technical documents into clear key takeaways without reading every page.
Summarize a PDFFree file comparison tool
Compare PDF, Word, TXT & Markdown (MD) Files Online
Compare two files online and instantly find differences between PDF, Word (DOCX), TXT and Markdown (MD) documents. See additions, deletions and changed text highlighted side by side.
🔒 Files stay in your browser. PDF, DOCX, TXT and MD · Up to 50 MB each. Text comparison only; scanned PDFs need OCR.
Choose the original file to see it here.
Choose the revised file to see it here.
Compare PDF, Word, TXT and Markdown files
Choose an original file and a revised file to compare automatically. Use matching formats or compare across formats, such as a Word draft against its PDF export. Select a difference or use Previous and Next to review added, deleted and changed text.
Review wording side by side
Two PDFs retain the original checker’s page-by-page comparison and PDF viewers. Word, TXT, Markdown and mixed-format pairs compare extracted text across the whole document. Markdown source syntax is included. Formatting, images and page layout are not compared.
Good to know
Frequently asked questions
Which file formats can I compare?
PDF, Word (.docx), plain text (.txt), and Markdown (.md or .markdown). Older .doc files must first be saved as .docx. TXT and Markdown should use UTF-8 or UTF-16 encoding.
Are my files uploaded?
No. Reading and comparison happen in your browser, with no account required. Files and results are not saved by this tool.
Does this work with scanned PDFs?
PDFs need selectable text. Scanned documents need OCR before comparison. Unlock password-protected PDFs first.
What are the file limits?
Each file can be up to 50 MB. PDFs can have up to 1,000 pages, and each document’s extracted text can contain up to two million characters.
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