Edit — SecPDF
Compress a PDF — see the savings instantly
Two honest modes: lossless optimization that keeps your text sharp, or strong compression that tames bulky scans.
100% in your browserNo file uploadsFree, no signup
Drop your file here
or
Choose fileUp to 100 MB per file — processed locally, never uploaded
Quick versions
How it works
Open your PDF
Drop the file into the box — compression runs locally, nothing is uploaded.
Pick a mode
Optimize keeps everything intact and trims what it can. Strong re-renders pages and shrinks scans dramatically.
Compare & download
See the size before and after, then download the compressed file. If nothing can be saved, you keep the original.
Frequently asked questions
Use Optimize mode: it rewrites the file's internal structure more efficiently without touching text, fonts or images. Savings depend on the file, typically 5–20%.