A PDF toolkit that stays out of your files
Folia exists because editing a PDF shouldn't require uploading a contract, an ID scan, or a financial statement to a server you know nothing about.
How it actually works
Every tool on this site — merge, split, compress, organize, edit, watermark, and convert — runs using two open-source libraries loaded directly into your browser: one that reads and renders PDF pages, and one that writes new PDF files. When you drop a file onto a Folia tool, it's read into your browser's memory, transformed there, and offered back to you as a download. At no point is the file sent over the network to a server for processing.
That has a practical trade-off worth being upfront about: very large files or very aggressive operations (like rendering hundreds of pages to images for an exact-size compression) rely on your device's own processing power, so performance scales with your computer rather than a data center. For the vast majority of everyday documents, that difference is not noticeable.
Why this matters
PDFs are disproportionately likely to contain the kind of information people are most careful with — signed contracts, tax documents, medical forms, identity scans. A tool that never receives that data in the first place removes an entire category of risk: there's no server log to secure, no retention policy to trust, and nothing to breach.
What Folia is not
Folia is not a document management platform, an e-signature service, or a place to store files — there's no account system and nothing is saved after you close the tab. It's a focused set of editing tools for the moments you need to fix, combine, or reshape a PDF and get back to what you were doing.
See it for yourself
Open any tool and try it on a real file — no account needed.