Upload two PDFs and get a structural diff — page counts, page sizes, and layout differences at a glance.
Upload two PDF files to compare
Page counts, sizes, and structure are compared
Review the differences report
Free is enough for most one-off jobs. Pro raises the file and batch caps; Pro + Media unlocks GB-scale streaming and unlimited duration.
Larger files supported on Developer (5 GB CSV) and Enterprise (unlimited). All processing happens in your browser — files never reach a server.
0 bytes uploaded. PDF Compare / Diff runs entirely in your browser using pdf-lib and pdfjs-dist. Your file stays on your device at all times. No data is sent to any server.
Yes. Alongside the structural diff (page count, page sizes), it extracts the text layer of each PDF and runs a line-level LCS diff, listing every line added and removed plus a unified-diff report. Scanned/image-only PDFs need an OCR text layer first.
Extract all text content from a PDF file. Clean, page-separated plain text output ready for processing.
Open toolRemove author, title, producer, creation date, and all metadata from a PDF. Essential for privacy before sharing.
Open toolCombine multiple PDF files into a single document. Free, browser-based, no upload. Drag to reorder pages before merging.
Open tool