Millions of people take photos of their driver's license, state ID, or passport on their iPhones in Apple's default HEIC format. However, when uploading to bank KYC verification portals, government benefit systems, lease applications, or DMV renewals, portals almost always require both sides of the card in a single file. Uploading two separate images often fails validation or requires manual officer review. Our tool merges both sides into a perfectly proportioned, standardized, ready-to-print document with zero server uploads.
Ready-to-Print Page Formats Explained
Standard A4 Document (PDF)
Formatted at 300 DPI (2480 × 3508 px) standard international letter/A4 paper. Positions front and back cards centrally with proper margins for printing, scanning, or official PDF portal submissions.
Standard 4×6 Photo Paper
Standard 300 DPI (1800 × 1200 px) photo print size. Print both sides on a single $0.35 photo print at Walgreens, CVS, Walmart, or a home photo printer instead of paying expensive duplicate photocopy fees.
Compact Digital Card
A lightweight, tight-margin canvas designed for attaching to emails, HR onboarding forms, or chat portals without excessive white borders.
Automatic Document Whitening & Shadow Removal
When you photograph your ID card lying on a desk or kitchen table, overhead room lighting creates ugly yellow casts, dark corner shadows, and table texture reflections.
Our Document Clean-Up Filter performs real-time adaptive luminance correction:
- B&W Document Scan: Whitens the surrounding paper to pure clean white (#FFFFFF) while sharpening text and barcodes to deep black (#000000).
- Clean Color Scan: Cleans shadows and gray haze while preserving the colored portrait photo, official holographic state crests, and colored stamps.
- Enhanced Grayscale: Smooth tonal gradient preservation ideal for laser printer output.
Comparison: Separate Photos vs. Ready-to-Print Stitched ID
| Feature | Two Separate Phone Photos | Ready-to-Print Stitched Page |
|---|---|---|
| File Count | 2 separate HEIC files | 1 unified, standard document |
| Bank & Gov Acceptance | High rejection rate (portal asks for 1 file) | 100% accepted on all portals |
| Printing Experience | Prints on 2 separate pages; wasted paper | Prints both sides on 1 sheet of paper |
| Shadows & Background | Table grain and dark shadows visible | Whitened, scanner-quality background |
| Privacy | Often uploaded to cloud servers | 100% on-device WebAssembly processing |
Frequently Asked Questions
What is the ID Card & Passport Dual-Side Stitcher?
It is a free, privacy-first in-browser tool that combines two separate iPhone HEIC or smartphone photos (the front and back of your driver's license, national ID card, work badge, or passport) onto a single, standardized, ready-to-print page (A4 PDF or 4×6 inch photo print).
Why should I stitch front and back ID photos together?
Banks, embassies, DMV offices, immigration portals, and job applications frequently request both sides of your identification in a single file or printed on a single sheet of paper. Submitting two separate image files often causes portal upload rejections.
Can I print this at CVS, Walgreens, or on a home photo printer?
Yes! When you select the 'Standard 4×6 Photo Paper' preset, the output is formatted at exact 300 DPI (1800×1200 px) standard 4×6 photo dimensions. You can upload it to Walgreens, CVS, Walmart, or Costco photo printing for under $0.40 instead of paying high passport photo fees.
What does the Document Cleanup Filter do?
When you photograph an ID on a table or counter, smartphone cameras capture shadows, yellow light casts, and table texture. Our Document Cleanup Filter automatically whitens the paper background to crisp #FFFFFF and sharpens dark text, making the ID look like a clean flatbed scanner photocopy.
Are my sensitive personal ID photos uploaded to any server?
Never. All image decoding, stitching, document filtering, and PDF generation run 100% locally in your web browser via WebAssembly. Your driver's license numbers, personal photos, and sensitive data never leave your device or touch an external server.
What file formats are supported for download?
You can export your ready-to-print stitched ID card as a high-resolution PDF document (standard A4), JPEG image, or lossless PNG.
Looking to convert general documents?
Convert multi-page contracts, receipts, or albums into clean PDF or JPG files.