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Extract text
pdf.js pulls text from both PDFs locally.
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Compare two PDFs with a text diff — see additions and deletions line by line. Unique among casual online suites; great for contract revisions when both files have a text layer.
PDFCompares extracted text layers. For scans, run OCR PDF first.
Both PDFs stay in your browser during compare.
pdf.js pulls text from both PDFs locally.
The MIT diff library highlights changes. For scans, OCR first.
Text-diff two PDFs side by side in your browser — A colleague sent a multi-part PDF and you only need a subset for a meeting pack. A portal rejects the file shape and you must fix it without desktop Acrobat.
Compare Two PDFs is built for private, in-browser work. Upload-based PDF sites often store temporary copies on someone else’s disk; SortMyFile’s default is the opposite — processing stays on your device for this utility. Both PDFs stay in your browser during compare. If a step needs a one-time language pack or WASM library from a CDN, that is asset delivery — not your document contents being sent to SortMyFile for server-side processing. Close the tab when you are done if you want memory cleared.
Text-diff two PDFs side by side in your browser. Before you run Compare Two PDFs, keep an original copy of every source file. Spot-check the download on the same device you will use for the portal or email. Large scans and phone photos are limited by browser RAM — if a run stalls, shrink the input first or split the job. SortMyFile browser tools stay free forever with no daily caps.
Text-diff two PDFs side by side in your browser — A colleague sent a multi-part PDF and you only need a subset for a meeting pack. A portal rejects the file shape and you must fix it without desktop Acrobat. People reach for Compare Two PDFs when a form, HR desk, or messaging app rejects the current file shape, size, or format and installing desktop software is overkill. Pair it with pdf-to-text, merge-pdf, ocr-pdf when you need a short pipeline (for example compress then OCR, or HEIC to JPG then JPG to PDF). Results are not a substitute for official portal rules — always re-read the receiving site’s instructions before a deadline.
Compare Two PDFs trades convenience for honesty about browser limits. Extremely large files, corrupted inputs, or DRM-protected media can fail. Password-protected PDFs need a password you already know — SortMyFile does not crack encryption. Free use does not require an account; Pro (when checkout ships) is planned to raise limits and reduce ads. Until then, the free tier is enough for most one-off private jobs.
Common questions
Not yet — this tool is text-focused.
Text-diff two PDFs side by side in your browser. It runs in your browser on SortMyFile so you can finish the job without an upload converter.
No. Compare Two PDFs processes locally in the tab. We do not operate an upload API for this tool.
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