# Is it private and safe to compare two PDFs online?

_Updated July 2026 · Arthize · https://arthize.com/answers/private-compare-pdf_

Yes. When you compare two PDFs in Arthize, the file is processed inside your private workspace and deleted after the job — never sold or used to train models. Comparison highlights text differences between two versions of a document.

## Answer

Yes. When you compare two PDFs in Arthize, the file is processed inside your private workspace and deleted after the job — never sold or used to train models. Comparison highlights text differences between two versions of a document.

## More about compare pdf

Comparison highlights text differences between two versions of a document.

It is the fast way to review contract or draft revisions.

Both files are processed privately and deleted after the job.

## How to compare two PDFs

1. **Open the compare tool** — Sign in and open the Compare tool.
2. **Add both PDFs** — Upload the original and the revised version.
3. **Compare** — Arthize highlights the differences between them.
4. **Review** — Scan the highlighted changes side by side.

## FAQ

### How do I compare two versions of a PDF?

Comparing two PDFs highlights what changed between versions — added, removed and edited text — so you can review revisions at a glance. On Arthize it's free with no watermark and processed privately.

### Can I see what text changed between two PDFs?

Comparing two PDFs highlights what changed between versions — added, removed and edited text — so you can review revisions at a glance. On Arthize it's free with no watermark and processed privately.

### Is comparing PDFs free?

Comparing two PDFs highlights what changed between versions — added, removed and edited text — so you can review revisions at a glance. On Arthize it's free with no watermark and processed privately.