About IXPDF

What is IXPDF?

IXPDF is a collection of free PDF tools built around one principle: your files never leave your device. Every operation runs locally in your browser using Web Workers — no file is ever uploaded to a server.

Local-first architecture

Traditional online PDF tools send your files to a remote server for processing. IXPDF does the opposite: the PDF engine runs inside your browser. When you select a file, its bytes are read into memory and handed to a Web Worker on your own machine. The result is produced locally and offered as a download.

This means:

• No uploads — your PDF never travels over the network.
• No server-side storage — there is no database and no cloud bucket.
• Fast — processing happens on your own CPU, with no round-trip.
• Private — nothing about your document leaves your device.

Our privacy promise (and how we keep it)

"Your files never leave your device" is a technical guarantee, not a marketing slogan. We enforce it in code:

• PDF processing happens only in a browser Web Worker.
• There is no upload API — the code path does not exist.
• No databases, no cloud storage, no server-side runtime.
• Analytics (Google Analytics 4) only receives coarse, non-sensitive events (tool name, success/failure, duration and size buckets). It never receives your file, file name, metadata, or extracted text.

Read the full privacy policy for details.

Technology stack

• Astro — static site generation for fast, SEO-friendly pages.
• React — interactive islands for tool UIs.
• Web Workers — off-main-thread PDF processing.
• pdf-lib — the in-browser PDF engine (abstracted so it can be swapped).
• TypeScript — end-to-end type safety.

Why local processing?

PDFs often contain sensitive information — contracts, IDs, financial statements, medical records. Uploading them to an unknown server is a privacy risk and a compliance headache. Local-first processing removes that risk entirely: the data stays where it belongs, on your device.