On rare occasions, huge diagrams may cause a timeout on the PDF generation servers, which might return a blank or corrupt PDF. If the built-in PDF generation via File > Export has problems, you can print your diagram to a PDF file.

  1. In the diagrams.net menu, select File > Print to display the Print dialog.
    Open the print dialog in diagrams.net to print to a PDF file
  2. Click Print.
    Print to a PDF file from the print dialog in diagrams.net
  3. Your operating system and browser will determine what steps you need to follow, for example:
    • If you are using Chrome, set the Destination to Save as PDF, then click Save.
      Select PDF as the destination to print a diagram to a PDF file in Chrome
    • If you are using a different browser on macOS, in the Print dialog, click on the PDF dropdown, then select Save as PDF. Enter a filename and then save the file.
      Click the PDF dropdown and select save as PDF to print your diagram to a PDF file on macOS