Compress PDF to 5 MB

You need your PDF under 5 MB - common for Gmail attachments, SharePoint uploads, and employee portals.

Optimize mode handles almost any document at this target. It cleans up the internal PDF structure without touching content quality - the result is identical in appearance but measurably smaller.

Optimize mode: preserves full text and image quality
Safe for contracts, reports, and signed documents
Most PDFs under 15 MB will reach the 5 MB target in Optimize mode

常见�-�题

My PDF is a 12 MB scan. Will Optimize get it under 5 MB?

For scanned documents, Optimize alone may not be enough since the bulk of a scanned PDF's size is embedded images. Try Balanced first - it downsamples images moderately and usually brings a 12 MB scan well below 5 MB.