This image is password protected. Enter the password to view:
Canvas Size
Set canvas dimensions (64-2048 pixels):
Current image will be centered on the new canvas
I.A.M. Whiteboard - Help
How to Use
Drawing: Click and drag to draw. Select color and pen width before drawing.
Drawing continues even when mouse leaves canvas area. Click by right button draws straight line from the last position.
Size: Change canvas dimensions (64-2048px). Drawing position is preserved
during resize.
Clear: Removes all content from canvas (requires confirmation).
Fill: Fills entire canvas with selected color.
Redo: Redo change.
Undo: Undo last change.
Import: Load image from URL. Paste exported URL or base64 data. No page
reload - works entirely in memory.
Share: Generate shareable URL with canvas data. Optional password
protection with AES-256-GCM encryption.
Save PNG: Downloads canvas as PNG image file with timestamp.
Options
Password protect: Encrypt exported image with password (AES-256-GCM).
Password required to view.
Auto-resize to fit: Scale canvas display to fill available screen space
while maintaining aspect ratio. Canvas resolution stays the same.
URL Parameters
Parameter
Description
Example
w
Canvas width in pixels (64-2048)
?w=800
h
Canvas height in pixels (64-2048)
?h=600
pen
Pen width in pixels (1-32)
?pen=5
img
Encoded image data (base64)
?img=H4sI...
autofit
Enable auto-resize (1/true or 0/false)
?autofit=1
URL Examples
?w=1024&h=768 - Open with 1024×768 canvas
?pen=10 - Open with pen width set to 10 pixels
?autofit=1 - Open with auto-resize enabled
?w=800&h=600&pen=5&autofit=true - Custom size, pen width, and auto-resize
?img=H4sI... - Open with exported image data
?w=640&h=480&pen=3&img=...&autofit=1 - All parameters combined