# Compare PDF for tax preparers

_Updated July 2026 · Arthize · https://arthize.com/for/tax-preparers/compare-pdf_

Arthize lets tax professionals compare two PDFs in a private workspace — free, with no watermark. Comparing two PDFs highlights what changed between versions — added, removed and edited text — so you can review revisions at a glance.

## Why tax preparers compare two PDFs

A tax preparer merges the return with its schedules and supporting documents into one client file, extracts figures from a PDF form into a worksheet, and password-protects the final package.

**Built for tax returns.** Whether it's tax returns, W-2s and 1099s, schedules, Arthize's compare pdf keeps the work inside your private workspace. Returns contain Social Security numbers and income data; private processing and deletion are essential.

## What matters when you compare two PDFs

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 tax preparers compare two PDFs for 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 the file is deleted after the job — which is why tax professionals can use it for tax returns without a confidentiality risk.

### Is it private to compare two PDFs sensitive tax returns?

Yes. Returns contain Social Security numbers and income data; private processing and deletion are essential. Files are processed inside your private Arthize workspace and deleted after the job.

### 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.