There are so many file types available in the internet such as .PNG .JPEG .TIFF and of course PDF.
As a Canva fan sometimes we need to upload PDF files.
The good news is Canva presently realse PDF editor where you can easily eidt PDF files.
As I said now you can edit PDF files even on the Canva free plan. Accroding to the Canva Help Centre;
This is an early version (beta release) of our PDF-to-design conversion feature. We’ll be improving it over time, depending on how you use it and on your feedback.
ref : https://www.canva.com/help/article/pdf-import/
How to Edit a PDF File in Canva ?
You can import or upload your PDFs to Canva in two ways: