A VS Code extension that renders PDF files using MuPDF compiled to WebAssembly.
Usage
Open any .pdf file in VS Code — the viewer opens automatically as a custom editor. The viewer also reloads automatically whenever the file changes on disk.
View modes
Click the scroll/page toggle button in the toolbar to switch between:
Scroll mode (default) — all pages rendered continuously
Single-page mode — one page at a time
Zoom
Action
Result
Ctrl+Wheel
Zoom in/out anchored to the mouse position
Right mouse button+Wheel
Zoom in/out anchored to the mouse position
+ / =
Zoom in
-
Zoom out
Fit Width button
Scale to fill the container width
Fit Page button
Scale to fit the entire page
Zoom input field
Type a percentage (e.g. 150%) or a decimal (e.g. 1.5)
Navigation
Action
Result
PageDown / ArrowRight
Next page
PageUp / ArrowLeft
Previous page
Page number input
Jump to a specific page
Outline sidebar entry
Jump to the bookmarked page
Thumbnail
Jump to the corresponding page
Click a link
Jump to the linked page, or open external URLs in the browser
Text selection and copy
Click and drag to select text.
Double-click to select a word.
Ctrl+C to copy the selected text to the clipboard.
Search
Type in the search box to find text across the document.
Press Enter / Shift+Enter or use the arrow buttons to navigate between hits.
Context menu
Right-click on an image to copy it as PNG.
Rotation
Click the rotate button to rotate the current page 90° clockwise.
Settings
Key
Type
Default
Description
pdfViewer.defaultZoom
number
1.0
Initial zoom level (1.0 = 100%).
pdfViewer.renderResolution
number
96
Render resolution in DPI. Higher values produce sharper output at the cost of more memory.
