Add Authorised Signatory Stamp to GST Invoices Online
Stamp vendor bills, tax invoices, and e-way bills with your legal business name, 15-digit GSTIN, state, and signatory signature. 100% private in your browser memory.
How to use:
- Upload Your GST Invoice: Drag & drop any PDF invoice, bill of supply, or purchase order. Files are processed in your browser RAM with zero server upload.
- Configure Stamp & GSTIN: Type your company name, GSTIN number, and choose between an official circular seal or rectangular "For [Company] Authorised Signatory" block.
- Place, Sign & Download: Position your seal over the "Authorized Signatory" line, add your drawn or cursive signature on top, and download your ready-to-send invoice.
Frequently Asked Questions:
Is a digital stamp and signature on a GST invoice legally valid in India?
Yes. Under Section 5(1) of the Information Technology Act, 2000 and Rule 46 of the Central Goods and Services Tax (CGST) Rules, electronic invoices authenticated with a digital signature or authorized signatory endorsement are legally valid for claiming Input Tax Credit (ITC).
Can I add my 15-digit GSTIN number directly inside the stamp layout?
Yes! PdfDio includes dedicated input fields for your 15-character GSTIN, Company Name, and State. You can render them inside a traditional circular rubber stamp or a neat rectangular invoice box.
Does the CGST Act require an Authorised Signatory stamp on tax invoices?
Rule 46(q) of the CGST Rules states that a tax invoice must have the signature or digital signature of the supplier or their authorized representative. Adding your company seal alongside the signature prevents invoice disputes and accelerates client payment approvals.
Is my confidential invoice rate or customer pricing uploaded to any server?
Never. PdfDio is built on a 100% In-Browser Zero-Upload architecture. Your tax invoices, customer lists, and financial figures are rendered locally in your browser memory and never touch remote cloud servers.