How it works
Three steps. That's it.
PDFSize does one thing brilliantly — compress your PDF to exactly the size you need.
01
Upload your PDF
Select or drag and drop your PDF. We accept files up to 50MB.
02
Choose compression
Pick Basic, Balanced, Extreme or type a Custom KB target.
03
Download instantly
Your compressed PDF is ready. File deleted after download.
A note on compression limits
Text-only PDFs may already be at their minimum size. Image-heavy PDFs compress dramatically. We always maintain legibility — use Extreme or Custom for maximum compression.