Canva to print: what can go wrong?
Short answer
Exports from browser-based design tools are usually structurally valid PDFs with three predictable problems: images in RGB, no bleed, and live transparency. All three are normally safe to correct automatically. The problem that is not safe to correct is low-resolution imagery the customer placed themselves.
What these exports typically contain
The page geometry is usually correct, fonts are usually embedded, and the file opens without complaint. Underneath, the colour is sRGB because the tool works in screen colour, there is no bleed because the canvas is the finished size, and transparency is left live because that is the default.
- RGB images and objects, no output intent set
- Trim box equal to the page, no bleed box
- Live transparency and blend modes
- Placed images at whatever resolution the user uploaded
Which problems are safe to fix
Colour conversion, bleed generation and flattening all have one correct answer once the production profile is known, so they can be applied without asking. That is what makes these exports pleasant to automate: the failures are consistent and their remedies are unambiguous.
Likely source design-tool export · confidence medium RGB → CMYK AUTO Bleed +3 mm AUTO Flatten transparency AUTO Logo 96 dpi REVIEW
Which are not
Resolution is the exception. A logo dragged in from a website is low resolution in the source design, and no export setting changes that. Telling the customer their Canva file is the problem is unhelpful; telling them the logo inside it is 96 dpi at the size they want it printed, and asking for the vector, is actionable.
How Prepta handles it
Prepta reports the likely source with a confidence level, applies the colour, bleed and transparency corrections your profile authorises, and escalates the resolution problem with the specific image and its measurement — so the message back to the customer is one clear request rather than a list of errors.