Reduce PDF file size with four compression levels — from lossless to maximum squeeze.
Drag & drop or click to browse · up to 100 MB
From lossless prepress quality to maximum squeeze for email and web sharing.
Files are processed in memory and deleted immediately — never stored on disk.
Output opens in Adobe Acrobat, Chrome, Preview, and any standard PDF reader.
A PDF compressor reduces the file size of a PDF document by re-encoding embedded images at lower quality and removing redundant data. A 25 MB scan of a brochure can often be brought down to 2–3 MB with no visible difference on screen — making it suitable for email, web upload, or cloud storage.
PDF compression is especially useful when a service imposes a file-size limit (many email providers cap attachments at 10–25 MB). EditPDF AI's compressor runs directly in your browser using WebAssembly, so your document is never uploaded to any external server.
Common ways people use this tool in real documents and day-to-day workflows.
Compress scanned contracts, reports, and brochures so they fit inside email attachment limits before sending.
Reduce downloadable PDF file sizes to improve page load times and keep hosting costs low.
Shrink large assignment PDFs that exceed submission portals' file-size caps.
Compress document libraries to reduce storage footprint without destroying the readable quality of the originals.
Drag your PDF onto the page or click to select it. The file stays local — it never leaves your device.
Choose Light (minimal quality loss), Balanced, or Maximum (smallest file, reduced image quality). A preview shows the estimated saving.
Click Compress. Your reduced PDF downloads in seconds. Compare the before and after file sizes right on screen.
