Free online tools
Simple tools for better prints.
Convert images, prepare PDFs, and calculate the right print dimensions—all in your browser, free and without an account.
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TOOLS / PDF TOOLS
PDF Tools
TOOLS / IMAGE TOOLS
Image Tools
TOOLS / CALCULATORS
Calculators
CM to Pixels
Convert between centimeters and pixels at your chosen DPI.
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Poster Size Calculator
Calculate the total dimensions of a poster made from standard paper tiles.
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Print Resolution Calculator
Check effective PPI and recommended print size from image dimensions.
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Want to print one image across multiple pages?
Use our full Poster Maker editor to choose paper sizes, preview the layout and download a printable PDF.