You bought a PDF of AR flash cards. Now what? This guide walks you through every step — from picking the right paper to printer settings that don’t waste ink — so your printed cards scan perfectly the first time.
The 5-minute version
- Use 200 GSM matte card stock (not glossy)
- Print in color, high quality, 100% scale (do not “fit to page”)
- Cut just inside the card border with a sharp scissors or paper trimmer
- Lay the card on a flat, non-shiny surface when scanning
- Use good ambient light — not direct sunlight on the card
If you do those five things, your cards will scan first try. The rest of this article explains why and covers edge cases.
1. Pick the right paper
The single biggest reason AR scanning fails is the wrong paper. Here’s the ranking:
- 200 GSM matte card stock — ideal. Stiff enough to handle little hands, matte enough that the camera can read the image without glare.
- 170–180 GSM matte — acceptable. Slightly less durable, scans fine.
- Standard A4 printer paper (75–80 GSM) — OK for casual play. Will bend in a week.
- Glossy photo paper — avoid. Light reflects off the surface and confuses the AR scanner.
Where to buy in India: Amazon and Flipkart sell 200 GSM matte card stock in A4 packs for ₹300–₹500 per 50 sheets. Stationery shops in metros stock it too.
2. Printer settings (the small things that matter)
- Paper size: A4 (or US Letter if your PDF was sized that way)
- Scaling: 100% — do NOT choose “Fit to page”. Scaling distorts the AR marker and breaks scanning.
- Color: Color, not grayscale. The AR pattern uses color cues.
- Quality: High / Best. Draft mode will work but reduces scan reliability.
- Borders: Borderless if your printer supports it; otherwise keep the default margins.
3. Cutting
Use a paper trimmer or sharp scissors. Cut just inside the printed border so the card is clean. Avoid jagged edges — they don’t affect scanning but kids notice rough edges.
4. Optional: Lamination
If you want your cards to last for years (great for classrooms or younger toddlers), laminate them with a matte (NOT glossy) laminating pouch. Glossy lamination reintroduces the reflection problem that ruins scanning.
If you don’t have a laminator, clear contact paper from any stationery shop works. Apply slowly to avoid bubbles.
5. Scanning environment
Three things help the camera see the card:
- Flat surface. Holding a curved card in a child’s hand makes scanning unreliable. Use a tabletop.
- Good ambient light. A bright room is ideal. Avoid direct sunlight that creates glare.
- Hold the phone 15–30 cm above the card. Too close, the camera can’t focus. Too far, the AR pattern is too small to recognize.
The 5 most common printing mistakes
- “Fit to page” scaling — distorts the AR marker. Always print at 100%.
- Glossy paper — reflects light, breaks scanning. Always matte.
- Draft / fast mode — thin ink, faded colors, unreliable scans.
- Grayscale printing — loses the color cues used by the AR pattern.
- Printing the wrong PDF page range — double-check page numbers, especially for bundles.
Cost calculator (so you know what to expect)
For our 137-design Preschoolify Bundle, printed all at once on 200 GSM matte stock:
- Paper (50 sheets at 4 cards per sheet, double-sided not needed): roughly ₹350
- Color ink (estimated): roughly ₹200–₹300 if home printer, less if at a print shop
- Total: ₹550–₹700 to print the full bundle once
If that sounds like effort, consider our Physical Kit (printed and shipped) when it’s back in stock — we use commercial-grade matte cardstock that lasts for years.
Sharing-print tip for parents
If you want to print just a few cards at a time (one theme per week, for instance), select “print specific pages” in your PDF viewer. Most of our PDFs are organized by theme, so you can print pages 1–26 for Alphabets, 27–46 for Animals, etc.
Final thought
The first time your child scans a printed card and sees a 3D lion roar out of it, all the printing setup is forgotten. Take the 30 minutes to do it right — the cards will be the highlight of your child’s week for the next 6–12 months.
New to Preschoolify? Start with our free 5-card sample pack to test your printer settings before printing the full bundle.