Bulk PDF Signer — sign hundreds of PDFs in one click
Stop signing documents one by one. Bulk PDF Signer applies your Class 3 Digital Signature to an entire batch of PDFs — Form 16s, invoices, contracts, drawings — accurately, securely and in minutes.
Everything you need for high-volume digital signing
- Batch signing — select a folder and sign hundreds of PDFs in a single run with your DSC USB token.
- Legally valid signatures — Class 3 DSC-based signing recognised under the Indian IT Act, 2000.
- Custom signature placement — set position, page and appearance once; it applies uniformly to every file.
- Timestamp support — embed trusted timestamps so signatures remain verifiable over time.
- Tamper-evident output — any change after signing invalidates the signature, protecting document integrity.
- Simple, fast workflow — no per-document uploads; everything runs securely on your own machine.
Made for people who sign in volume
- Chartered Accountants — sign Form 16, Form 16A, audit reports and certificates for all clients at once.
- HR & payroll teams — issue signed salary slips, appointment letters and HR documents company-wide.
- Lawyers & legal teams — execute agreements, notices and filings without printing a single page.
- Architects & construction firms — sign drawings, BOQs, work orders and contractor bills in bulk.
- Accounts departments — digitally sign monthly invoice runs before dispatch to customers.
From folder to signed in three steps
Select your documents
Point the software to a folder of PDFs — one file or one thousand.
Plug in your DSC token
Choose your Class 3 certificate and set the signature position and appearance.
Sign the batch
Click once. Every PDF is signed, timestamped and saved to your output folder, ready to share.
Bulk PDF Signer — common questions
How many PDFs can I sign at once?
You can queue an entire folder — hundreds of documents such as Form 16s, invoices or contracts — and sign them in a single batch using your DSC token.
Are the signatures legally valid in India?
Yes. Signing uses a Class 3 Digital Signature Certificate issued by a licensed Certifying Authority, legally recognised under the Indian IT Act, 2000.
Can I control where the signature appears?
Yes. Set the page, position and appearance once and the software applies it consistently to every document in the batch.
Do my documents leave my computer?
No. Signing happens locally on your machine with your own DSC token, so confidential documents never need to be uploaded anywhere.
I don't have a DSC yet — can you help?
Yes. Saibex also provides Class 3 Digital Signature Certificates, so you can get your DSC and signing software from one place.
Sign your next 500 documents in one sitting
See Bulk PDF Signer work on your own files. Book a free demo or call us — we'll have you signing in bulk the same day.
Request a Free Demo