The tool decodes the uploaded image in a Web Worker, optionally resizes it by maximum width, and asks OffscreenCanvas to encode image/tiff. It is useful for quick format handoff checks, but it is not a full prepress TIFF authoring workflow.
TIFF encoding support is inconsistent across browsers, and this converter does not preserve animation, original metadata, ICC profiles, layers, or multi-page structures. If your production workflow needs those features, verify the exported file with your print or archival toolchain.
Common questions and answers about this topic.
No. All conversion runs entirely in your browser inside a Web Worker. Your images never leave your device.
Use TIFF when another archive, print, or graphics workflow explicitly asks for a TIFF bitmap. For browser display, prefer JPG, WebP, AVIF, or PNG. If you need multi-page TIFFs, embedded color profiles, layers, or print-production metadata, use a dedicated desktop or prepress tool after this quick browser conversion.
TIFF encoding relies on the browser's OffscreenCanvas API and is not natively supported in all browsers (Firefox and Safari currently do not encode TIFF). If conversion fails, try Chrome or Edge for the best compatibility, or use a desktop tool like ImageMagick / Photoshop.