New in the SumatraPDF [pre-release builds](https://www.sumatrapdfreader.org/prerelease):

## PDF tools: compress, encrypt, delete and extract pages

New commands, in the command palette and a new **Document** submenu of the page's right-click menu:
- **Compress PDF** / **Decompress PDF** (`CmdPdfCompress`, `CmdPdfDecompress`)
- **Delete Pages From PDF** (`CmdPdfDeletePages`)
- **Extract Pages From PDF** (`CmdPdfExtractPages`)
- **Encrypt PDF** (password protection with AES-256, `CmdPdfEncrypt`)
- **Decrypt PDF** (removes the password, `CmdPdfDecrypt`)

Page ranges accept `8-` as a shorthand for "page 8 to the end".

![The Document submenu of the page's right-click menu with the new PDF commands](https://files.sumatrapdfreader.org/assets/sumatrapdf/changelog/img/pdf-tools-document-menu-95cd.png)

## Toolbar and menu in fullscreen

The new `Fullscreen` advanced setting (`ShowToolbar`, `ShowMenubar`) shows the toolbar and menu bar in fullscreen mode. `F8` / `F9` toggle them while in fullscreen. The right-click menu in fullscreen also contains the full main menu ([#1565](https://github.com/sumatrapdfreader/sumatrapdf/issues/1565)).

![Fullscreen mode with the menu bar and toolbar shown](https://files.sumatrapdfreader.org/assets/sumatrapdf/changelog/img/fullscreen-toolbar-menu-9833.png)

## Global screenshot hotkey

**Set Screenshot Hotkey** (`CmdSetScreenshotHotkey`, command palette) sets or removes a system-wide hotkey for taking screenshots ([#5518](https://github.com/sumatrapdfreader/sumatrapdf/issues/5518)).

![The Set Screenshot Hotkey dialog showing the current hotkey](https://files.sumatrapdfreader.org/assets/sumatrapdf/changelog/img/set-screenshot-hotkey-6dd1.png)

## Save PDF attachments

Saving file attachments from PDFs works again: right-click a file attachment and choose **Save Attachment** ([#1455](https://github.com/sumatrapdfreader/sumatrapdf/issues/1455)).

## Images open shrunk to fit

The `DefaultImageZoom` setting moved to `ImageUI.DefaultZoom`. By default, images open shrunk to fit the window.

More: [changes from April 12, 2026](https://www.sumatrapdfreader.org/docs/Changelog-2026-04-12) and the [full changelog](https://www.sumatrapdfreader.org/docs/Changelog).