troubleshooting guide
Find whether a shipping label was cropped in the source PDF, thermal feed path or Letter/A4 printable area, then set a safe reprint gate.
Best next step
Start with the tool or template that matches this guide before printing paid postage again.
Last reviewed: 2026-08-29
Compare the original PDF with the print. If the edge is already missing in the file, regenerate it in the issuing workflow. If only the paper output is clipped, follow the thermal roll or desktop sheet branch; never shrink the whole label merely to expose a missing barcode edge.
Symptom-led fix
Compare the original PDF with the physical output before changing scale; a source crop and a printer crop require different fixes.
The downloaded file is already incomplete before it reaches the print dialog.
Stop. Return to the issuing order or shipment workflow and regenerate the document; printer scaling cannot restore missing source content.
Inspect the source PDFThe PDF is complete, but every roll label loses the same side.
Match driver media, reload the guides and calibrate the printer. Do not shrink the whole barcode to hide an origin or feed error.
Test thermal alignmentLetter or A4 output reaches the printer's non-printable area.
Use the source's matching sheet size and orientation. Print a blank page boundary before deciding whether a workflow-native sheet layout is required.
Test the sheet boundaryOpen the untouched PDF and inspect every page before printing. If the barcode, address or service mark is absent there, stop and return to the issuer; no print setting can reconstruct source content. If the PDF is complete, record the selected paper, scale, orientation and which physical edge is clipped.
When every 4×6 label loses the same edge, confirm the driver media, reload and center the guides, and run the printer's documented media calibration. When the crop moves over successive labels, investigate feed sensing or loose media rather than changing PDF scale.
A desktop printer may have a non-printable margin. Adobe notes that Actual Size does not scale and can crop a page that does not fit the selected paper. Use the source's matching sheet size and orientation, or regenerate a workflow-native sheet layout; Fit can hide the margin problem by shrinking everything.
A blank template using the same viewer, driver and media must print completely before another paid label. Reprint from the original PDF when any barcode, quiet-zone space, tracking number, address, service text or routing mark was clipped. Escalate to the issuer when the source remains incomplete.
General troubleshooting framework: Adobe supports the PDF sizing behavior and Zebra supports the thermal calibration branch. Printer-specific buttons, offsets and printable areas still come from the exact model manual.
This page is a practical print-setting checklist, not official carrier policy or a promise that a label will be accepted.
Confirm the current format in your platform or carrier account, keep the original PDF, and stop if a test print is cropped, blurred or incorrectly scaled.
Troubleshooting advice is general. Record the printer model, paper size, PDF viewer and scale setting so you can verify each change.
If the original PDF is missing the edge, regenerate it. If the PDF is complete but a blank template and live label lose the same edge, the printer path is responsible.
A fixed edge suggests media size, roll guides, printable origin or calibration. Follow the exact printer manual before using offsets.
Changing edges point more strongly to feed sensing, roll drift or loose guides than to one static PDF crop.
It can reveal the edge by resizing the whole page, but that also changes the barcode. Prefer matching paper or a correct source layout.
Stop whenever active content is missing, a template still crops, or the source PDF is incomplete. Reprint only after the responsible path is corrected.