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Sign PDF for contractors
Updated July 2026
Arthize lets construction and trades teams sign a PDF in a private workspace — free, with no watermark. Signing a PDF lets you draw, type or add a digital signature and fill form fields, so you never print, sign and rescan a document again.
Why contractors sign a PDF
A contractor merges a bid, permit and change order into one project file, signs a document from their phone on site, and compresses a photo-heavy progress report to email the client.
Built for bids. Whether it's bids, permits, change orders, Arthize's sign pdf keeps the work inside your private workspace. Bids and client contracts are commercially sensitive; a private workspace keeps them secure.
What matters when you sign a PDF
A clear electronic signature is legally valid for everyday agreements in most countries.
Cryptographic digital signatures bind the signature to the document for higher assurance.
You can fill form fields and sign in the same tool without printing.
How to sign a PDF
- 1
Open the sign tool
Sign in and open the sign-and-fill tool.
- 2
Create your signature
Draw it, type it in a signature font, or use a digital certificate.
- 3
Place it and fill the form
Drop the signature where it belongs and fill any fields, dates or checkboxes.
- 4
Download the signed PDF
Save the signed document with no watermark.
Common questions
- How do contractors sign a PDF for free?
- Signing a PDF lets you draw, type or add a digital signature and fill form fields, so you never print, sign and rescan a document again. On Arthize it's free with no watermark, and the file is deleted after the job — which is why construction and trades teams can use it for bids without a confidentiality risk.
- Is it private to sign a PDF sensitive bids?
- Yes. Bids and client contracts are commercially sensitive; a private workspace keeps them secure. Files are processed inside your private Arthize workspace and deleted after the job.
- How do I sign a PDF online for free?
- Signing a PDF lets you draw, type or add a digital signature and fill form fields, so you never print, sign and rescan a document again. On Arthize it's free with no watermark and processed privately.
- Is an electronic signature on a PDF legally valid?
- Signing a PDF lets you draw, type or add a digital signature and fill form fields, so you never print, sign and rescan a document again. On Arthize it's free with no watermark and processed privately.
Related
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