Upload the e-Aadhaar letter you downloaded from UIDAI — the PDF, or an image of it. The two cut-out panels at the bottom of the letter are detected and separated into a card front and back, then laid out at true card size (85.6 × 54 mm) on an A4 sheet, ready to print and laminate.
Print at 100% (actual size) — not “fit to page” — then cut and laminate.
Upload a photo of an Aadhaar / PAN / Voter card. AI finds the card in the photo and crops it to the exact card size (85.6 × 54 mm). Then preview, download or print copies. For best results, shoot the card straight from above on a plain surface.