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Make your file fit what the form is asking for
Exact pixel size, an exact KB range — including the minimum, which is what actually gets uploads rejected and which almost every other tool ignores. Plus 115 free tools to merge, compress, and convert PDFs, photos, and documents. All in your browser; nothing is ever uploaded.
Fix a photo for an upload form →Compare two PDFs
Extract the text from two PDFs and see a word-level diff between them.
Two versions of a contract and no track-changes to tell you what moved. This pulls the text out of both PDFs and shows a word-level diff, so the one clause that quietly changed is visible instead of hidden in forty identical pages.
How Compare two PDFs works
- Drop your files into the tool, or click to browse.
- Everything runs in your browser — no upload, no server, no waiting.
- Download your result straight to your device.
Good to know: It compares the TEXT, not the visual layout. Fonts, spacing, images, and formatting changes won't show up — and a scanned PDF has no extractable text at all, so there's nothing for it to compare.
Common questions
Why does it find no differences in my scanned documents?
A scan is a picture of a page, so there's no text layer to extract or diff. This tool only compares real, selectable text.