Sign & Forms
Fill forms, add signatures and dates, build fillable PDFs, and run a basic e-signature workflow.
Best for: Business, HR, real estate, education
The usual order: build or fill the form, add the signature or letterhead, then flatten and send the finished packet.
How to use
- 1Upload the PDF to sign or fill
- 2Complete fields or place a signature
- 3Create a fillable form if needed
- 4Save or download the signed copy
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Ready when you are
Runs in your browser whenever possible — no signup needed to start.
Open Sign PDF (Stamp)PDFLean is a productivity tool and does not provide legal, medical, regulatory, or compliance advice. Review outputs before relying on them for regulated or high-stakes decisions.