Hello @RosaMotta ...
There shouldn't be a file size limit on a PDF file if you are uploading it to Canvas. However, the limitation is usually based on the amount of available storage you have in the course. For example, if you are an instructor, within your "Files" area of your course, you'll see a percentage and available storage space listed at the bottom left corner of that page. If you are storing files in your personal "Files" storage area...which is found via "Account" >> "Files" (either as an instructor or a student), you'll also see a similar percentage used out of the available storage space available. So, as long as you are within those limits, you should be able to upload a PDF file without issue.
Hope this helps a bit. Let Community members know if you have any other questions about this...thanks!
