Image Format FAQ

What image file formats are accepted?

JPG format

  • sRGB or Adobe RGB colour embedded
  • 8 bits or 16 bits per channel
  • Baseline Standard encoding

PNG formats

  • sRGB or Adobe RGB colour embedded
  • 8 bits per channel
  • No alpha channels

TIFF formats

  • sRGB or Adobe RGB colour embedded
  • 8 bits or 16bits per channel
  • All layers flattened
  • No alpha channels
  • Image Compression: NONE, LZW, or ZIP
  • Pixel Order: Interleaved

What do you recommend?

We recommend you upload JPG files. When you export the JPG from your image editing software (e.g. iPhoto/Photo app or Photoshop), make sure you select Quality > Best. This will automatically disable any compression that might be applied.

Ideally, files should be in JPG format, sRGB or Adobe RGB colour embedded, a resolution of 300 PPI at print size, with Baseline Standard encoding (if saving from Photoshop).

All 3 file formats above (JPG, PNG, TIFF) will yield an identical print result on our equipment, as long as they have the same pixel dimensions, bit depth, and colour space. JPG format will have the smallest overall file size, which will require less time to upload.

We recommend doing all post-processing work in an uncompressed format (RAW, TIFF, PSD, PSB), and then when the file is print-ready, export or save as in JPG format at maximum quality.

If you are a professional photographer, you might be interested in our blog post A Primer on Colour Profile

What’s the best format for graphic designs?

We would recommend saving your designs as JPG files in RGB mode. Please have a read of Best Settings For Saving Vector Images For Print.

Why has my image uploaded as scrambled lines?

It’s likely that your image is in CMYK or grayscale mode. We can only print from RGB mode files. You can change the colour mode by opening your image in Photoshop and going to Image > Mode.