Review a translation side by side

Check a translation beside its original and list numbers, dates and references that differ

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Check a translation against its original, page beside page, and tick each page as you go. The tool lists numbers, dates, references and Latin-script names that appear in only one document, and pages whose length looks far off. The listed items are for you to judge: the tool does not rate the translation.

Formats
Two PDFs. Export a side-by-side PDF and an Excel checklist.
Limits
Up to 500 pages compared, 100 MB each. Scanned pages have no text to compare unless you run text recognition first. Comments and form fields in the sources may not appear in the side-by-side PDF.
Your data
Processed in your browser. Your files are not uploaded, and they are not saved in this browser.

Documents to compare

Use this if the original has a cover page the translation does not. Leave at 0 otherwise.

How to use: Side-by-Side Translation Review

Check a translated PDF against its original with both pages in view. The tool lists numbers, date parts, references, emails and Latin-script names found in only one document, and flags pages whose length looks far off. Tick each page as you check it and add notes. The list is a prompt for your review: the tool does not judge translation quality. Your files stay on your device.

  1. Add the original and the translated PDF.
  2. Go through each pair of pages, tick those you have checked and add notes.
  3. Look through the values that appear in only one document.
  4. Download a side-by-side PDF and an Excel checklist.

Supported formats

Input: two PDFs. Output: side-by-side PDF on landscape A4, Excel checklist.

Limits and what to expect

  • Compares up to 500 pages, 100 MB each. Scanned PDFs have no text to compare until you run Extract PDF Text on them, but you can still review them by eye.
  • An item on the list can be correct, such as a date written out in words. Single digits are not listed.
  • Names written in Arabic are not compared with their English spelling, so check them by eye.
  • It cannot tell whether wording is accurate. A qualified person should still review the translation.
  • Comments and form fields in the sources may not appear in the side-by-side PDF.

Frequently asked questions

Does it compare Arabic and English numbers?

Yes. ١٢٥٠٠, 12,500 and 12500 count as the same value. Amounts must match in value; currency words are not compared.

Is this the same as Compare Two PDFs?

No. Compare Two PDFs finds changes between two versions in the same language. This tool is for an original and its translation, where the wording is meant to differ.

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