Comparar texto
Muestra las diferencias de texto entre dos PDF en paralelo.
Original (A)
Actualizado (B)
When the question is what the document now says, comparing pictures is the wrong instrument: reflowing a paragraph moves every line after it and lights up the whole page, while a single changed number stays invisible. This tool extracts the words from both files and compares them, marking what was added and what was removed, and giving you the counts.
Long documents are truncated to a first tranche of words, and the report says so rather than implying it read to the end. If both files need comparing in full, split them and compare the parts. Reports come out as an HTML file you can open and read with the changes coloured, or as plain text.
How it works
- Drop in the two PDFs.
- Read the added and removed counts, and the marked-up text.
- Download the HTML report, or the plain .txt version.
What people use it for
- Finding the clause that changed between two drafts of an agreement.
- Checking whether a re-issued policy differs from the one you have on file.
- Confirming a translation covers everything in the source document.
Frequently asked questions
- Is my file uploaded to a server?
- No. The file is opened by JavaScript and WebAssembly running inside your own browser tab. It is never uploaded, there is no server-side processing and nothing is stored — closing the tab discards everything.
- It says no selectable text was found.
- One or both files are scans — images of pages with no text layer. Run them through OCR first and compare the results, or use the visual Compare tool, which works on pixels and needs no text at all.
- Why was my comparison truncated?
- Word-by-word comparison grows quickly with length, so very long documents are cut off at a limit and the report tells you where. Split the documents and compare the matching parts if you need the whole thing.
- It says the documents are identical, but they look different.
- Then the difference is not in the words: a different font, a moved logo, a new stamp or a changed layout. That is what the visual Compare tool is for.
- Does it show moved text as a change?
- A moved paragraph reads as a removal in one place and an addition in another, because the comparison works on the sequence of words. That is worth knowing before you conclude a section was rewritten when it was only relocated.
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