Problems printing a PDF: "Cancelling" message Canon NL July 28, 2026 07:43 Updated Some PDF files contain data that cannot be processed correctly by the Canon printer or the printer driver. As a result, the print job may stop or fail.This can happen with any PDF file, but it is more common when you print directly from a web browser, such as Chrome, Safari, or Edge.How to resolve the problemTurn the Canon printer off and then on again using the power button. This clears the failed print job from the printer's memory. After that, you can print other documents again.Then print the PDF again:Save the PDF file to your computer.Open the file in Adobe Acrobat Reader or another PDF reader.Select File > Print.Select the printer from the printer list and send the print job.