What people are asking
Office 365 users hitting library/upload caps; same pain as Outlook but into SharePoint.
Teams said the PDF was too large. Compress once on your machine; do not upload a client file to a random compressor.
What Compress PDF actually does
- Recompress images with presets to cut megabytes.
What it does not do
- Raise your tenant’s SharePoint size quota—only shrinks the file.
Steps
- Open Compress PDF.
- Use email/balanced preset; strengthen if still rejected.
- Proofread; upload again to SharePoint/Teams.
Related guides
Outlook 25MB · Compress without uploading · IRS/portal compress
Go deeper
Scenario guides hub · Open Compress PDF · All PDF tools · Privacy
Last updated 2026-08-20 · Research-backed long-tail