PDF Compare
開発者Compare two PDFs locally by hash, metadata, page dimensions, and form fields.
Upload a PDF to inspect its structure. This comparator is best for metadata, layout, and form-field differences rather than visual pixel diffing.
Upload a PDF to inspect its structure. This comparator is best for metadata, layout, and form-field differences rather than visual pixel diffing.
PDF Compare の使い方
Upload two PDF files and the tool compares them locally in your browser. It checks whether the binaries match exactly, compares file size, page count, page dimensions, metadata like title/author/dates, and any fillable form fields it can detect. This makes it useful for revision checks, form template audits, and spotting structural changes without sending the documents to a server.
Upload both PDFs
Choose the original file and the revised version you want to compare.
Review the summary
See whether the binary hash, page count, dimensions, form fields, and metadata match or differ.
Inspect each snapshot
Open the detail panels to review SHA-256 hashes, metadata values, and page sizes side by side.
Decide what changed
Use the structural differences to confirm whether the files are identical, lightly edited, or materially changed.