---
title: "PDF Tools — Compress, Merge, Split & Convert | Compress Pro"
description: "The complete PDF toolbox — compress, merge, split, protect, unlock, rotate, watermark and convert PDFs. Free and private: files never leave your browser."
canonical: https://compress-pro.com/pdf-tools
---

# PDF tools.

> Compress, merge, split and edit PDFs without any uploads.

PDFs are where the sensitive documents live — contracts, medical records, applications — which makes “upload it to compress it” a strange ritual. Every PDF tool here runs Ghostscript and pdf-lib **in your browser**: the same professional-grade engines, zero uploads, from squeezing a scan under a portal’s cap to stamping, protecting and reorganizing pages.

**No uploads · No ads · Free & open source.**

## Compress & core tools

- [Compress PDFs](https://compress-pro.com/compress-pdf)

## Convert

- [Convert JPG to PDF](https://compress-pro.com/jpg-to-pdf)
- [Convert PNG to PDF](https://compress-pro.com/png-to-pdf)
- [Convert PDF to JPG](https://compress-pro.com/pdf-to-jpg)
- [Convert PDF to PNG](https://compress-pro.com/pdf-to-png)
- [Convert PDF to text](https://compress-pro.com/pdf-to-text)
- [Convert PDF to PDF/A](https://compress-pro.com/pdf-to-pdfa)

## More tools

- [Unlock PDF files](https://compress-pro.com/unlock-pdf)
- [Password-protect PDF files](https://compress-pro.com/protect-pdf)
- [Merge PDF files](https://compress-pro.com/merge-pdf)
- [Split PDF files](https://compress-pro.com/split-pdf)
- [Extract pages from a PDF](https://compress-pro.com/extract-pages-from-pdf)
- [Delete pages from a PDF](https://compress-pro.com/delete-pages-from-pdf)
- [Rotate PDF pages](https://compress-pro.com/rotate-pdf)
- [Watermark PDF files](https://compress-pro.com/watermark-pdf)
- [Add page numbers to PDFs](https://compress-pro.com/pdf-page-numbers)
- [Convert PDFs to grayscale](https://compress-pro.com/grayscale-pdf)

## How it works

1. Pick the operation — compress, merge, split, protect or convert.
2. Drop the documents; Ghostscript and pdf-lib run locally in the tab.
3. Download the finished PDF — it never left your device.

## Frequently asked questions

### Which PDF tool do I need?

Size problems → Compress PDF (target-size mode hits exact caps). Many files → Merge. Too many pages → Split, extract or delete pages. Access control → Protect and Unlock. Presentation → rotate, watermark, page numbers, grayscale.

### Are these real PDF engines?

Yes — compression runs Ghostscript, the engine print workflows have trusted for decades, compiled to WebAssembly. Page operations use pdf-lib and previews render through pdf.js, the same renderer Firefox uses.

### Can I chain operations?

Yes, and it is the intended pattern — merge first, then number pages, then compress to the cap. Each step downloads a file the next page accepts.

### Is it safe for confidential documents?

That is the design goal — documents are processed entirely on your device and never uploaded. Close the tab and nothing remains anywhere.

---

Part of [Compress Pro](https://compress-pro.com/) — every tool page has a markdown twin at `<page url>.md`. Full tool index: [llms.txt](https://compress-pro.com/llms.txt)