Free PDF Markup Tools
Free PDF markup tools compared
See how PDF Markup Tool stacks up against other free tools for construction drawing review. Neutral comparison on features that matter: no account required, local processing, free export, cross-platform support, and offline use.
Feature Comparison
| Tool | Account required to use | File upload or local processing | Free export watermark/limits | Platforms supported | Works offline |
|---|---|---|---|---|---|
| PDF Markup Tool | No | Local processing in browser | No watermark | Browser (Mac, Windows, Linux); iPad support | Yes (works offline after your first visit) |
| Redline PDF | Yes (demo available without account) | Browser processing + server storage (optional) | Redline footer on free exports | Browser (Chrome, Edge, Safari, Firefox on Windows, macOS, Linux, iPad, Android) | -- |
| ContractorCounter | Free account available (no card required) | -- | Not included on free plan | Browser (Mac, Windows, iPad, iPhone, Android) | -- |
| SolidTakeoff | No (account optional for cloud features) | Local browser processing (with cloud option) | "Generated with SolidTakeoff.com" footer on free exports | Browser-based (Mac, Windows, iPad and others) | -- |
| KresCAD | No (no card required) | Local browser processing | Watermark-free | Desktop and laptop browsers (mobile/iPad support planned) | -- |
"--" indicates the feature status is not stated on the tool's public pages. Comparison checked 2026-10-18. On iPad, add it to your Home Screen — Safari clears offline data after 7 days without a visit.
Why no prices on this comparison?
Pricing changes frequently and can vary by region and subscription term. For current pricing, visit each tool's official site. This comparison focuses on the features that matter for construction drawing markup.
Is PDF Markup Tool really free?
Yes. Browser-based use is free with no account required. We don't charge for markup, export, or any core features.
What does "local processing" mean?
Your PDF is processed in your browser on your device. Your files don't leave your machine. Some tools offer both local processing and optional cloud storage.
Can I use these tools on iPad?
Most tools run in a browser on iPad if the browser is supported. iPad-specific support varies by tool, so check their official documentation.
Ready to mark up for free?
Open a PDF in your browser right now — no download, no signup, nothing uploaded.