Canvas & Export Tool
Canvas Size & Export Helper
Calculate canvas size, DPI, pixel ratio, print dimensions, and export specs for drawing, covers, printing, and app imports. Generate blank SVG or PNG canvases.
Quick start
Start from common canvas scenarios
Choose a close starting point, then adjust for your app, print, or publishing need.
No matching presets. You can enter a custom size below.
Copy format
Good as a drawing canvas or app import background.
Import into Sketch Board to draw, annotate, or draft covers.
Common size recipes
Start from high-intent canvas sizes
These sizes are useful for search, bookmarking, and sharing. Open a recipe to load the preset, then adjust DPI, background, and safe guides.
A4 300 DPI pixel size
2480 x 3508 pxGood for printable drawing sheets, lesson handouts, handwriting templates, and sharp PDF export.
Open A4 recipe →16:9 video cover size
1920 x 1080 pxGood for Paint Play drawing video covers, lesson thumbnails, landscape presentation images, and video platform drafts.
Open 16:9 recipe →Portrait social post size
1080 x 1440 pxGood for tutorial steps, artwork posts, visual notes, and vertical cards with a stable 3:4 ratio.
Open portrait recipe →Sketch Board canvas size
2560 x 1440 pxGood as a landscape drawing canvas, cover draft background, annotation page, and base import size for Sketch Board.
Open Sketch Board recipe →From size to app
What can you do after sizing the canvas?
This tool is the first step before creating: choose the spec, then move into the right app for drawing, covers, reference pages, or printable templates.
Drawing / annotation
Sketch Board
Use the chosen size as a base canvas for background import, drafts, handwritten notes, tracing, and visual thinking.
Video / animation Paint PlayPrepare 16:9 or vertical covers for drawing videos, animation practice, and lesson thumbnails with safe areas.
Reference / organization FlexformTurn the canvas into a reference page, mood board, or handout page with images, links, files, and handwriting.
Print / practice Drawing Practice Sheet GeneratorReuse paper size and DPI to generate lined, grid, dot, isometric, storyboard, and pressure-practice templates.
Guide
What does this tool solve?
The Canvas Size & Export Helper helps you decide how large a canvas should be before you start drawing or exporting. Start from pixels, millimeters, centimeters, or inches, choose a DPI, and get pixel size, print size, aspect ratio, and a downloadable blank canvas.
Use it for Sketch Board canvases, Paint Play video covers, Flexform reference pages, printable sheets, lesson thumbnails, and social covers. It complements the drawing practice sheet generator: one defines the canvas spec, the other creates template content.
| Use | Recommended size | Ratio | Best for |
|---|---|---|---|
| A4 300 DPI | 2480 x 3508 px | 1:1.414 | Print, practice sheets, handouts |
| 16:9 | 1920 x 1080 px | 16:9 | Video covers, lesson covers, landscape canvases |
| Portrait social post | 1080 x 1440 px | 3:4 | Vertical posts, tutorial steps, artwork display |
| WeChat article cover | 900 x 383 px | About 2.35:1 | Article covers, resource posts, operations images |
| Avatar / icon | 1024 x 1024 px | 1:1 | Avatars, icons, square covers |
| Phone wallpaper | 1080 x 2400 px | 9:20 | Phone wallpapers, vertical posters, tall drafts |
How many pixels is A4 at 300 DPI?
A4 paper is 210 x 297 mm. At 300 DPI, it is about 2480 x 3508 px, which works well for printable sheets, handouts, and high-quality export.
What DPI should I use for a drawing canvas?
For screen-only drawing or publishing, pixel size matters more than DPI. For print, 300 DPI is a good default, while 600 DPI can help with fine line art.
Why use a safe area for cover images?
Video covers, course covers, and social images can be cropped or covered by UI on different devices. A safe area keeps important content away from the edges.
Should I download SVG or PNG?
PNG is best for direct import into drawing apps or publishing. SVG is better when you want to edit size, background color, or guides later.