# CorePDFTools

> Free, privacy-first PDF tools that run entirely in your web browser. Files are never uploaded to a server — all processing happens locally on the user's device. No sign-up, no daily limits, no watermarks.

CorePDFTools is a collection of client-side PDF utilities. Every operation (merging, splitting, compressing, converting, signing, protecting, OCR) is performed in-browser using JavaScript and WebAssembly. This makes it suitable for sensitive documents such as IDs, contracts and financial statements, which never leave the user's device.

## Tools
- [Merge PDF](https://corepdftools.com/merge.html): Combine multiple PDFs into one file in your browser.
- [Split PDF](https://corepdftools.com/split.html): Split a PDF by page range or extract every page.
- [Compress PDF](https://corepdftools.com/compress.html): Shrink PDF file size while keeping text sharp and selectable.
- [Compress PDF to 100KB](https://corepdftools.com/compress-to-100kb.html): Compress a PDF to an exact target size (100KB, 200KB, 300KB, 500KB) for exam and government portal uploads.
- [Rotate PDF](https://corepdftools.com/rotate.html): Rotate pages and save the rotation permanently.
- [Organize PDF Pages](https://corepdftools.com/organize.html): Reorder and delete pages visually.
- [JPG to PDF](https://corepdftools.com/jpg-to-pdf.html): Convert JPG/PNG images into a single PDF.
- [PDF to JPG](https://corepdftools.com/pdf-to-jpg.html): Convert each PDF page to a high-quality JPG image.
- [Protect PDF](https://corepdftools.com/protect.html): Password-protect and encrypt a PDF on your device.
- [Sign PDF](https://corepdftools.com/sign.html): Draw and place a signature on a PDF.
- [Watermark PDF](https://corepdftools.com/watermark.html): Add a text watermark across every page.
- [OCR PDF](https://corepdftools.com/ocr.html): Extract text from scanned PDFs using in-browser OCR.

## Key pages
- [How it works](https://corepdftools.com/how-it-works.html): Plain-language explanation of the in-browser processing model and the libraries used (pdf-lib, PDF.js, Tesseract).
- [FAQ](https://corepdftools.com/faq.html): Common questions about privacy, file uploads, compression quality and browser support.
- [Blog](https://corepdftools.com/blog/index.html): Guides on compressing PDFs to size limits, merging without quality loss, signing, and privacy.
- [Privacy Policy](https://corepdftools.com/privacy.html): Files are never uploaded; the site uses Google Analytics, AdSense and Adsterra with cookies.

## Key facts
- All processing is client-side; no file is ever uploaded.
- Free and unlimited; no account required.
- Compression downsamples embedded images while keeping text selectable; it never rasterizes text and never returns a file larger than the original.
- Works on desktop and mobile browsers (Chrome, Edge, Firefox, Safari).
- Contact: contactus@corepdftools.com