Compare the two draft chapter PDFs and produce a report showing where text was added, removed, or moved, highlighting …
Open Adobe Acrobat on your computer.
Go to Tools and select Compare Files.
Click Select File under 'Compare' and choose your first PDF (the older or original version).
Click Select File under 'With' and choose your second PDF (the newer or revised version).
Click Compare to start the comparison.
Review the results in the comparison summary and use the side-by-side view to examine highlighted differences.
Best practiceFor best results, avoid using scanned PDFs as input files, as text recognition may be inconsistent.
You can filter the comparison results to focus on text, images, or formatting changes for a clearer review.
This runs in the Acrobat app - there is no separate API for this task.
This message appears because one or both of your PDF files are protected. Security settings on a PDF can stop features like comparison from working. To fix this, you need to remove the protection from the files first. You can usually find options to remove security in the 'Protect' section of Acrobat.
The 'Compare text only' option tells Acrobat to ignore any pictures or graphics in your documents. It will only look for changes in the written words. This is useful when you only care about text edits and want to skip visual differences.
When you compare two signed document versions, Acrobat will highlight any changes that were made after the document was signed. This is very important for legal or official documents. It helps you see if the content was altered after someone put their digital signature on it, ensuring document integrity.