AI PDF Bundles

100% Private · Files Never Leave Your Device

Free PDF tools that respect your privacy

Merge, compress, extract text with OCR, sign, split, rotate and convert PDFs — entirely inside your browser. No accounts, no uploads, and no third-party servers ever see your documents.

Most free PDF sites upload your files. We don’t.

When you use a typical online PDF converter or merger, your document is sent to a remote server, processed there, and then returned. Even when operators promise deletion after processing, the file has already left your device. For contracts, medical forms, tax documents, scanned IDs or anything containing personal information, that is a real privacy cost.

AI PDF Bundles takes a different approach. Every tool on this site runs entirely inside your web browser using open-source JavaScript libraries (pdf-lib, pdf.js, Tesseract.js and JSZip). Your file is read into memory on your own device, processed locally, and the result is offered as a download. Nothing is transmitted to our servers — because there is no server-side processing step.

This design is intentional. It means the tools continue to work even if you lose your internet connection after the page has loaded, and it means the actual content of your documents is never available to us or to any third party.

What you can do here

  • Merge multiple PDFs into one document without changing quality
  • Compress large scanned or image-heavy PDFs with a quality slider you control
  • Extract text from scanned pages using on-device OCR (Tesseract.js)
  • Sign a document by drawing your signature and placing it on the page
  • Split, rotate, crop, watermark, number pages, extract images and more

All of these operations are free, require no account, and leave your original files untouched. The tools simply produce a new file for download.

How it works

Three steps. No queues, no accounts, no waiting for a remote server.

1

Choose a tool

Select Merge, Compress, OCR, Sign, or any of the other free utilities below. Each tool is self-contained and loads only the libraries it needs.

2

Process on your device

Your file is read into the browser’s memory using the File API. All conversion, compression, OCR or signing happens locally with JavaScript and WebAssembly.

3

Download the result

A new file is generated and offered as a download. Your original remains untouched. Nothing is stored on any server.

Free PDF tools

All tools below run entirely in your browser. Select a file, configure the options if needed, and download the result. For multi-page or complex operations, a desktop browser generally performs best.

Merge PDF

Combine two or more PDFs into one document. Pages keep original quality and order.

No files selected

Compress PDF

Reduce file size with a quality slider. Best for scanned or image-heavy documents.

No file selected

PDF to Text (OCR)

Extract readable text from scanned or image-based PDFs using on-device Tesseract OCR.

No file selected

Sign PDF

Draw your signature and place it on the last page. For informal signing only (not certificate-based).

More tools

Additional utilities for splitting, rotating, converting, watermarking and repairing PDFs. Each opens on its own page with the same private, browser-based processing.

Frequently asked questions

Is my file uploaded to a server?
No. When you select a file it is loaded into your browser’s memory via the File API and processed with JavaScript libraries such as pdf-lib and Tesseract.js. The file never leaves your device and never touches our servers. There is no upload step.
How does the OCR text extraction work?
Each page is rendered onto an in-memory canvas with pdf.js, then analyzed by Tesseract.js (an open-source OCR engine running via WebAssembly). Recognition happens on your device. Accuracy depends on scan quality — clear printed text works best; handwriting and low-resolution scans are less reliable.
Will compressing reduce text quality?
Compression re-renders each page as an image and re-encodes it at the quality you choose. Lower settings produce smaller files but softer detail. Compressed pages become images of the original (text is no longer selectable). Keep an original copy if you need searchable text later.
Is there a file size or page limit?
There is no hard-coded limit. Because everything runs in browser memory, very large or very long documents may be slower or use more RAM. For the smoothest experience with big files, use a modern desktop browser.
Do I need an account?
No. No account, email or sign-up is required for any tool. Open the page, choose a tool, select your file, and download the result.

Guides & explainers

Practical articles on PDF workflows, privacy, compression, OCR and more.

View all guides →

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