Before printing a stretched canvas, check that one approved set of dimensions controls the full artwork sheet, the front-facing image and the side-wrap margins. A screen preview can conceal a mismatch: an image might be centered on the digital sheet but displaced on the physical front after folding. Confirm the actual producer's guide, crop placement, orientation and finished outer size. Mark critical faces, text, signatures and straight lines, then compare the approved proof with the exact print-ready export rather than an earlier mockup.
Identify the authoritative size and layout files
Start with the customer's approved final dimensions, orientation, source image version, and the precise product configuration the print studio intends to make. Record whether width and height refer to the outer stretched object, the visible front image, or the flat printed fabric. A specification that says only 'large landscape canvas' is not enough. Check that the units match and that the job uses the same version of the design that received the last written approval.
A landscape commissioned as three equal physical panels may show a continuous pier across the gaps. If the print studio needs additional side material, the visible pier must stay on the front of each panel while the wrap uses separately allowed content. Lay a scaled production guide over each panel and compare the pier's end points before exporting. Record the panel order and finished widths independently from the full flat sheet widths. An error in only one panel can make the whole image appear misaligned even when the original composite was correct.
Place the actual production guide above the approved artwork as a separate non-destructive overlay. Identify the visible-front boundary, the planned folds, any side-image allocation, and any surplus material required for finishing. Do not invent a fixed wrap-margin number; this depends on the chosen support, corner method, and printer. The guide should be obtained from the supplier or prepared against an approved manufacturing specification.
Cross-check critical details at every boundary
Inspect each edge at high magnification for words, signatures, faces, fingertips, and lines that must continue or terminate intentionally. Measure their distance from the true visible-front boundary, not merely from the edge of the digital file. For mirrored or solid-color sides, verify that the selected treatment is represented accurately. For an image continuation wrap, make sure the artwork's front crop does not remove the detail that the customer expected to see.
Confirm that the artwork's proportions agree with the front dimensions without accidental stretching. If the input image is a different shape, the production plan must show exactly which area will be cropped. A proof that merely compresses a landscape into a narrower rectangle is not an acceptable substitute for a deliberate crop. If image content must be added or reconstructed at the sides, that is an editorial change requiring its own review.
Close the loop with a production-ready proof
Create an approval proof with labeled dimensions and the visible-front outline, and save the flat production image as a separate clearly named file. The two should correspond to the same underlying source. Ask a second reviewer to check orientation, the location of important content, and the arithmetic between printed size and edge allowances. This is particularly useful for typographic canvases and artwork with precise borders.
Record who signed off, which version was approved, and what manufacturing assumptions were used. If the supplier later changes stretcher depth, edge treatment, or overall size, do not allow the old signoff to stand unexamined. Return to the crop guide, update the proof, and seek renewed approval for any meaningful visible change. A documented final check is easier to verify than a verbal assurance that the printer will 'make it fit'.
A successful preflight ends with matching dimensions in every description of the job: digital master, full print sheet, front-facing image and finished stretched object. When those boundaries agree and essential details are protected, the approved file can move forward without relying on a deceptive mockup or a guessed side-wrap margin.