Printer calibration page
Print one Letter or A4 page with a 50 mm square, a poker card outline and rulers to check your printer prints cards at the right size, and learn how to fix it when it doesn’t. Free, in your browser, with no sign-up.
- No account
- Your files stay in your browser
- Free for commercial games too
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Questions
How do I use the test page?
Download the PDF, print it at 100% (“Actual size”), then measure the square with a ruler. It should be exactly 50 mm (about 2 inches) on each side, and the card outline should match a real poker card.
The square is smaller than 50 mm. Why?
Your print dialog is shrinking the page to fit, usually to 94–97%. Choose “Actual size” or a 100% scale, and turn off “Fit to page”, “Shrink oversized pages” and “Scale to fit”. In Adobe Acrobat and Reader, it’s under Page Sizing & Handling; in Chrome and Edge, under More settings > Scale; in Preview on a Mac, set Scale to 100%.
The square is the wrong size even at 100%. What now?
Check the paper size in the print dialog matches the paper in the tray: an A4 page printed on Letter (or the other way round) can be scaled to fit. Some printer drivers have their own “Fit to page” or borderless setting that enlarges the page, so look in the printer’s preferences too.
Is it the same test page as the Decklab app?
Yes. It is the app’s “Print test page”, made the same way in your browser, so a printer that passes here prints your Decklab cards at the right size.
Should I check both directions?
Yes. Measure the square across and down, and the two rulers. If one direction is off and the other isn’t, the paper is slipping or the printer needs its own alignment or calibration run.
Related tools
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- Tuck box generatorMake a printable tuck box for your card deck: pick the card size, how many cards and sleeves, add art for each side, and download a PDF with cut and fold lines or a PNG. Free, in your browser, with no sign-up.
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- Print size calculatorConvert millimetres, inches and pixels at any DPI, see the image size a card needs with its bleed, and how many cards fit a sheet of Letter, A4 or A3. Free, in your browser, with no sign-up.
Making a whole game?
The Decklab editor keeps every card, token and board in one project, so a change reaches all of them.
See the editor