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How to Stamp a Certified True Copy on a PDF (with UDIN)

Step-by-step guide for professionals to add a certified true copy stamp with firm name, registration number, membership number and UDIN to PDF documents.

Professionals often need to certify copies of documents such as financial statements, registers or certificates before they are submitted. When the original is a PDF, you can add a neat, consistent certification block without printing and scanning.

What a certification block usually contains

  • The words "Certified True Copy"
  • Firm name and its registration number
  • Name of the signing partner or proprietor and membership number
  • The unique document identification number where your professional body requires one (for chartered accountants in India, the UDIN generated on the ICAI UDIN portal)
  • Place and date, and a signature

Follow the current rules of your professional body on when a UDIN is required and what the certificate must say; this guide covers the mechanics only.

Steps

  1. Open Certified true copy and select the PDF.
  2. Fill in the firm line, registration number, partner name and membership number. These are remembered on your computer for next time.
  3. Enter the UDIN for this document. It is cleared automatically for the next file, because each document needs its own.
  4. Choose the pages (every page, first, last or a list), the corner and the ink colour.
  5. Optionally upload a signature image, or leave the space empty to sign the printout by hand.
  6. Click the button to download the stamped PDF.

The stamp shrinks automatically on small pages such as receipts so it never runs off the edge.