Your all-in-one PDF tool. Effortlessly combine multiple PDF files and convert various documents or images to PDFs. Free and open-source.
No hidden fees, no trials, and no credit card required. Forever free and transparent.
Process PDFs without internet connection. Your files never leave your computer.
Start using immediately. No sign-ups, no accounts, no email required.
Your documents stay private. No data collection, no cloud uploads, no tracking.

Everything you need to manage your PDFs efficiently.
A glimpse into the user-friendly interface of SumPDF.

Clean and user-friendly interface for all your PDF needs

Merge multiple PDFs with simple drag and drop

Convert various file formats to PDF seamlessly
Download the latest version for your operating system.
Installs SumPDF on your C drive
For developers who want to build SumPDF from the source code.
Linux/macOS:
Or with hot-reload for development:
Windows:
Or with hot-reload for development:
SumPDF is open-source and I welcome contributions from the community.