Open source PDF tools

Open source PDF tools — no upload. Free, private, and processed on your device.

1 Select or drop your file to start Open source PDF tools. Everything runs directly in your browser.2 Choose your target size or options. Open source PDF tools processes the file instantly on your device.3 Download your finished file. Nothing is ever uploaded to a server.

About this tool

Open-source PDF tools with publicly auditable code. Check the client-side architecture yourself on GitHub. No analytics, trackers, or hidden server uploads.

Open source PDF tools is processed entirely on your device. Your original file remains untouched, and nothing is ever uploaded to a server or saved in the cloud.

No upload: the privacy claim is that no upload request exists for the file.
Speed: processing happens instantly on your device with no upload or download delays.
Quality: you can check your file before saving, and the original remains unchanged.

FAQ

Does “Open source PDF tools” upload my file?

Open source PDF tools processes your file locally in this browser tab. There is no upload step and no account required.

What will “Open source PDF tools” actually change?

Open source PDF tools runs only the named tool locally. No hidden converters or remote calls exist.

When is “Open source PDF tools” the wrong job?

Zero requests are sent to external servers while using open source pdf tools.

How do I check the result of “Open source PDF tools”?

Check the network panel in Developer Tools when running open source pdf tools to confirm no upload occurs.

Can I run “Open source PDF tools” with Wi-Fi off?

You can turn off Wi-Fi after loading this page and Open source PDF tools still works completely offline.

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Last updated 2026-09-27.