Tired of PDF apps that feel bloated, confusing, or built around subscriptions?

Sonic PDF is a simple PDF editor and toolkit for Windows. It helps you handle everyday PDF tasks like editing, annotating, merging, splitting, watermarking, and converting files — without creating an account or signing up for a monthly subscription.

Use it when you need to make a quick PDF change, combine documents, mark up a file, add a watermark, or convert a document without opening a browser or uploading your files online.

🔹 What Sonic PDF can help with:

• Edit PDF content – Add or update text, images, layouts, and page elements.

• Mark up PDF files – Highlight, underline, add comments, insert stamps, and draw shapes.

• Merge PDFs – Combine multiple PDF files into one clean document.

• Split PDFs – Extract selected pages or break large files into smaller PDFs.

• Add watermarks – Place custom text or image watermarks on your PDF pages.

• Convert documents and images – Convert PDFs to and from popular file formats.

• Work faster with thumbnails and bookmarks – Navigate long documents more easily.

Sonic PDF is made for people who want a straightforward PDF app for common tasks — not a complicated system that gets in the way.

No account required. No monthly subscription.

Just open your PDF, make your changes, and export your file.

* Optional one-time upgrade available for advanced tools.