PRINT SIZING
Measure the visible design inside a large canvas
Compare canvas dimensions with artwork dimensions and calculate the physical size of the part that will actually print.
A file manager may report 5000 by 5400 pixels even when the visible artwork occupies only 3200 by 3600. The first measurement describes the outer grid. The second describes the content inside it. Confusing them can make a design look unexpectedly small when a print workflow places the complete canvas.
Identify the two rectangles
The canvas boundary is the full exported PNG. The artwork boundary is the smallest region that includes the visible design you intend to print. RSPrintCanvas centers the source rectangle, which may contain transparent padding. It does not calculate or trim the visible artwork boundary. An image editor with a transparency-aware selection can help inspect that boundary in the source and in the final export.
Calculate a physical-size example
At a chosen 300 pixels per inch, a 5000 by 5400 canvas corresponds to about 16.67 by 18 inches. Artwork spanning 3200 by 3600 pixels corresponds to about 10.67 by 12 inches at that same density. The arithmetic uses pixels divided by PPI. It describes an intended mapping, not a guarantee that the browser export writes a 300 PPI metadata value into the file.
Trace where empty space enters the workflow
Transparent source padding, the selected safe margin and the difference between source proportions and canvas proportions can all leave space around the design. None is automatically an error. The question is whether the final visible size matches the job. If it does not, adjust the prepared source or the canvas plan deliberately rather than simply enlarging the outer file again.
Check placement in the destination preview
Import the final PNG into the receiving print workflow and inspect its stated or previewed placement size. Confirm how that service interprets transparent padding and resolution metadata. A preview can apply its own scaling. If the design is too small, revisit the visible pixel dimensions and the intended print area. Preserve the complete artwork and avoid cropping decorative details just to make a size label look larger.
Put the example to work
Open the tool, enter your own inputs and review the result. The pixel dimensions and physical print size guide explains the workflow and its limits.
Open RSPrintCanvas