Over the past [N=20] vocational plans, edits between draft and final often change timelines and supports without clear…
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.
The 'Compare text only' option helps you focus on written changes. If you check this box, Acrobat will ignore any differences in images or graphics. This is useful when you only care about the words in your document, like in a legal contract where pictures are not important.
Compare Files fails with a security error because one or both PDF files are protected. These protections stop Acrobat from reading and comparing the content properly. To fix this, you need to remove the security settings from both documents before you try to compare them. This ensures Acrobat can access all parts of the files.
When comparing signed documents, Compare Files can show if the signature itself has changed or if content was altered after signing. However, if the document has security settings from the signature that prevent comparison, you will need to address those first. For specific details on comparing signed document versions, Adobe has a dedicated help page that explains how digital signatures affect the comparison process, ensuring you understand the integrity of the document.