Ink and KillerPDF
KillerPDF is a free, GPLv3 PDF editor for Windows. Review its documented editing, annotation and OCR tools against your own sample files.
Compare the offer
| Product | Published model | Price |
|---|---|---|
| Ink Personal | One-time · prelaunch | US$99 |
| Ink Business | One-time · prelaunch | US$199 |
| KillerPDF | Free, open-source Windows software | Free |
Choose by the work you need
Start with a few representative documents. Test text changes, annotations, forms, scanned pages, saving and printing. If you collect signatures from other people, test the recipient experience separately from signing your own PDF.
Ink Personal is US$99 once for your own PDF work. Ink Business is US$199 once and adds Send for Signature. Ink is in prelaunch; checkout is closed.
Compare Ink plansSources
Vendor information checked September 21, 2026. Prices, taxes, regional offers and terms can change. These are published product descriptions, not independent performance tests. Ink is not affiliated with the companies compared.