# PrintScale > PrintScale enlarges photographs into TIFF, PNG and JPG files for photographers, designers and print shops. Users select a long edge in centimetres and a resolution; aspect ratio is preserved. Each image costs $2.49 to $6.99 by output size, paid by card or from a prepaid balance shared by the web app and API. There is no subscription. Downloads are available for three days. The public tool provides a watermarked crop preview without an account. Enlargement does not reliably repair blur. Paper presets set a long-edge target without cropping. ## Product - [PrintScale](https://printscale.app/): Upload a JPEG, PNG or WebP photograph and try a real AI crop preview. - [Pricing](https://printscale.app/pricing/index.md): $2.49 to $6.99 per image by print size, no subscription; top-ups: $10 adds $10, $15 adds $16, $20 adds $23. - [Calculator](https://printscale.app/calculator): Calculate print dimensions at 150, 300 and 600 pixels per inch without an account. - [About](https://printscale.app/about): The service generates TIFF, PNG and JPG files for printing. ## Print guides - [How big can I print a 12 megapixel photo?](https://printscale.app/guides/12-megapixel-print-size/index.md): A 4,000 × 3,000 pixel photo prints at 33.87 × 25.40 cm at 300 PPI. Compare sizes at 150, 200, 240, 300 and 600 PPI. - [300 DPI vs 600 DPI: which one do you need?](https://printscale.app/guides/300-vs-600-dpi/index.md): Compare 300 and 600 DPI with exact pixel tables. Learn when extra pixels help, why file size grows, and how to choose a print density. - [What resolution do I need for an A1 poster?](https://printscale.app/guides/a1-poster-resolution/index.md): A1 needs 7,016 × 9,933 pixels at 300 DPI. Compare 150, 300 and 600 DPI, paper dimensions, cropping and viewing distance. - [What resolution do I need for an A2 poster?](https://printscale.app/guides/a2-poster-resolution/index.md): A2 needs 4,961 × 7,016 pixels at 300 DPI. Find the complete 150, 300 and 600 DPI table and practical advice on preparing your photo. - [What resolution do I need for an A3 poster?](https://printscale.app/guides/a3-poster-resolution/index.md): A3 needs 3,508 × 4,961 pixels at 300 DPI. Compare exact pixel dimensions at 150, 300 and 600 DPI and prepare the right crop. - [What DPI do I need for printing?](https://printscale.app/guides/dpi-for-printing/index.md): Understand DPI versus PPI, choose 150, 300 or 600 for your print, and compare pixel requirements for A4, A3, A2 and A1. - [Why do print shops ask for TIFF?](https://printscale.app/guides/why-print-shops-ask-for-tiff/index.md): Learn why printers request TIFF, what lossless LZW preserves, and how pixel count and bit depth affect a print file's size. - [Why does my print look blurry when the photo looks sharp on screen?](https://printscale.app/guides/why-prints-look-blurry/index.md): A sharp-looking screen preview can hide low resolution, missed focus or compression. Check print density with a real pixel-to-size table. ## API and policies - [API documentation](https://printscale.app/docs): Bearer API keys provide upload, upscale, job-status and balance endpoints for applications and MCP agents. - [Retention](https://printscale.app/retention): Generated downloads have a three-day availability window. - [Refunds](https://printscale.app/refunds): A failed job returns its price to the balance automatically. - [Terms](https://printscale.app/terms): Images are sold individually or paid from a prepaid dollar balance. - [Privacy](https://printscale.app/privacy): The policy describes account data, image processing, payments and usage analytics.