FRAMEPRINTS · PRINT GUIDE
5×7, 8×10 and A4: Which Paper Size Fits?
A frame label names a paper format, not the exact visible opening. Match the sheet first, then check the frame lip and image proportions.
Compare the actual sheet dimensions
5 × 7 inches is 127 × 177.8 mm. 8 × 10 inches is 203.2 × 254 mm. A4 is 210 × 297 mm (about 8.27 × 11.69 inches). US Letter is 215.9 × 279.4 mm (8.5 × 11 inches).
A4 and Letter are close in width but differ in height. A file placed on the wrong sheet may leave extra margin or be scaled by a printer dialog. Select the named paper size in both the file and print settings.
Check the frame orientation
The same dimensions can be portrait or landscape. Turn the sheet and frame the same way before comparing them. A landscape image does not become a portrait composition by rotating the paper; choose artwork and layout with the same orientation.
Many frames use a visible opening smaller than the labelled paper. Measure the inner opening directly instead of relying on a typical allowance.
Use aspect ratio to predict margins
5 × 7 has a 1:1.4 ratio, while 8 × 10 has a 1:1.25 ratio. A4 is about 1:1.414 and Letter is about 1:1.294 in portrait orientation. When the artwork has a different shape, a full-image layout adds blank paper at the sides or top and bottom.
A borderless or fill-page setting may crop the image to remove those margins. If preserving every edge matters, use a fit/contain layout and allow white paper around the image.
Print at the named size
Choose the exact paper format in the printer dialog, use Actual Size or 100%, and disable Fit to Page. Measure a test print with a ruler before framing it.
Choose paper by its exact dimensions and orientation. Check the frame opening separately because the label does not describe the visible area.