Set a target file size and we'll hit it. Free for files under 5MB. Your documents are never stored on our servers.
No learning curve. No account needed for free compressions.
Drag in one PDF or a whole folder. Free users get one file at a time. Pro users compress up to 50 at once.
Choose a preset or type an exact target like "2MB" or "500KB". We find the right compression level to hit it.
Preview quality before committing. Download your file or the whole batch as a ZIP.
Most compressors just shrink your file and hope for the best. SlimPDF lets you type in a target and automatically finds the right settings to match. Perfect when you need to hit a portal's upload limit.
Stop compressing one file at a time. Drop in an entire folder and download everything as a single ZIP. A feature that used to require enterprise software, now available for $9 — once.
Drag a slider to compare page quality before and after compression. Know exactly what you're getting before you commit. No more opening a blurry file and starting over.
We don't store your files. We don't log your documents. Your PDFs are processed and immediately discarded. Built for lawyers, HR teams, and anyone handling documents they'd rather not upload to a random server.
Free forever for small files. One payment for everything else.
Free: single file up to 5MB · Upgrade for unlimited batch →
Lifetime access unlocked. No subscription. Ever.