Start with the reported file problem
A failed image read describes what this browser tool could process, rather than the parcel’s position or carrier status. Check the displayed reason before changing the label. Our reader accepts PNG, JPEG and WebP files up to eight MiB, with no more than twenty-four million pixels or twelve thousand pixels on either edge. PDFs, SVGs and other file types need a suitable local image export; changing the filename extension does not convert the file.
These are this site’s processing limits, not Royal Mail postage requirements. Accepted large pictures are reduced to 2,048 pixels on their longest edge before barcode reading. A close image of the intended code may therefore be more useful than a large photograph containing an entire desk. If a file cannot open, try a fresh supported export. For a timeout or unavailable reader, use the displayed retry guidance or enter the original readable reference manually.
Capture one complete symbol with room around it
Our practical recommendation is to photograph the barcode squarely, in focus and without glare. Include the complete symbol and its blank border when cropping; removing the border to make the bars look larger can hinder reading. The UPU S10 standard describes a quiet zone at the barcode’s ends. Its requirements concern that standard’s barcode representation, rather than a promise that every phone photograph will decode successfully.
This reader attempts one supported barcode per image. It supports Code 128, Data Matrix, QR, Aztec and PDF417, while Mailmark four-state and RM4SCC bars are outside its image support. It performs no OCR: a photo of printed service words or an address cannot supply those words to the text checker. Choose the intended symbol, or copy readable label text yourself. If several labels are visible, separate them before investigating which reference belongs to the parcel.
Separate image decoding from reference interpretation
An image failure means no supported payload was returned by that attempt. A successful read means barcode text was extracted; the next text check has its own limits. A long numeric reference, unfamiliar two-dimensional payload or decoded link need not follow S10 structure. Royal Mail says its item references contain nine to twenty-seven characters, so the absence of a thirteen-character S10 match does not automatically invalidate the label or service.
The tool displays decoded links as text and does not open them. Review the returned content before using it in the text field, removing personal details that are unnecessary for the check. If the payload remains unexplained, compare the printed reference with the booking or posting receipt instead of reconstructing an address or account from it. Royal Mail cannot trace a parcel using only a name or address; ask the actual sender for the assigned reference when needed.
Identify whether the QR retrieves a label or identifies the parcel
A QR code in a booking confirmation can support label printing. Reading it locally does not identify its purpose through appearance alone, and it should not automatically become the parcel’s tracking reference. Royal Mail’s Tracked 24 instructions describe taking a parcel and QR code to a Post Office or Royal Mail Shop to print eligible online postage labels. Its Post Office footnote limits Tracked label printing to parcel format.
Follow the instructions supplied for the actual booking, including the supported location and product. After printing, compare the assigned item reference and complete service with the final label and order. Keep the printing code, customer order number and parcel reference distinct in the private record. A code used to obtain a label does not settle the booked account, service options or completed carrier handover. Use the product comparison as a reference when the service wording needs clarification.
Check the physical print before changing printer settings
A sharp screenshot cannot establish the quality of the label attached to the parcel. Click & Drop advises choosing an appropriate label template and warns that resizing its labels or using custom printer contrast can make them incompatible with barcode scanners and disrupt tracking information. Start with its instructions for the printer and paper you use. When correcting a print, reconcile the resulting label with the same booking rather than inventing a replacement reference.
Inspect the whole attached label for readable address details and unobscured barcodes. Click & Drop permits plain-paper attachment when the label remains readable and unobscured; Royal Mail warns that an unreadable or detached address can prevent delivery. The UPU recommends a flat placement for S10 rather than folding the code around an edge. After preparing the parcel, retain the applicable posting or collection evidence separately: the image result and finished label do not establish physical acceptance.
Assign the remaining question to the booking party
Record the reported file error, original reference source, complete product and next check. A recipient can request the original details from the sender; a sender should identify who purchased postage and can provide the booking or printing record. For Jeton’s stated China–UK route, distinguish Guangzhou receiving and release, CAN/CZ/784 or HKG/CX/160 movement, LHR arrival, UK partner clearance and physical Royal Mail handover. Each stage needs its own dated supporting record.
Those route codes do not prove that a particular parcel travelled, and a browser image error cannot establish customs delay or loss. Edinburgh stock receipt is separate from preparing a later customer dispatch or return. Ask the party responsible for the unresolved stage to obtain the relevant evidence, and agree the next review action. Keep photos, addresses and full references in the private case. Share the fixed public troubleshooting guides separately, without including the label data in their URLs.
Official references
References reviewed on 2026-10-07. Check current product and help terms before booking or making a claim.