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Compare PDF for engineers
Updated July 2026
Arthize lets engineering teams 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 engineers compare two PDFs
An engineer merges drawings and specs into one submittal, compares two revisions to catch changes, and archives the final set as PDF/A so it stays readable for the project's lifetime.
Built for drawings. Whether it's drawings, specifications, reports, Arthize's compare pdf keeps the work inside your private workspace. Project documents can be commercially sensitive; a private workspace protects designs and client data.
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.
Common questions
- How do engineers 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 engineering teams can use it for drawings without a confidentiality risk.
- Is it private to compare two PDFs sensitive drawings?
- Yes. Project documents can be commercially sensitive; a private workspace protects designs and client data. 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.
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