This is the commonly used size: we found no requirement published by the institution. Confirm it before your application.
Tips to get it right the first time
After OUAC, each university asks for documents in its own applicant portal, with its own size limit.
Most want one PDF per document: join multi-page transcripts into a single file.
Limits vary (uOttawa: 10 MB, Toronto Metropolitan: 50 MB); 2 MB passes almost any portal.
How to do it with Requisito Listo
Open «University admissions documents».
Add the PDFs and photos in the order requested.
The app joins them into one A4 PDF under the maximum size.
Upload or save it.
At the end you'll see a checklist: size, file weight, background and format. If something doesn't comply, it tells you what to fix before the portal rejects it.