Getting started

RaioPDF opens a PDF from your computer and gives you what you need to read, organize, edit, and prepare it — all on your own machine, with no account to create.

Open a PDF

There are two ways:

1. Drag a PDF onto the window.
2. Click Open a PDF and choose one from your computer.

The start screen shows "Open a PDF to get started." Once you're working, the Open button in the toolbar brings up another file at any time.

If a file won't open, RaioPDF offers to repair it — some PDFs are built in unusual ways, and a repair pass usually fixes them.

Find your way around

• The toolbar across the top handles the basics: open, save, print, moving page to page, zoom, and search.
• The panel on the left shows page thumbnails and the document's bookmarks, for jumping to a page or reordering pages.
• The Tools panel on the right is grouped into Edit, Annotate, Organize, and Legal, with Make Searchable (OCR) on its own. Edit changes the document's real content (Edit Text, page numbers, watermarks); Annotate layers comments and markup on top of it.
• Select is your normal reading mode — the plain pointer. When you're done with any tool, click it again or press Esc to return to Select.

Saving your work

Tools change the document you have open; nothing is written to your disk until you Save. Use Save As to write the changed version to a new file and keep the original untouched.