About Royal Mail Mailmark 2D (Data Matrix)
The 2D form of Royal Mail Mailmark as Data Matrix – listed here under 2D barcodes. Contains format, version, class, supply chain ID, item ID and postcode.
Data format
Mailmark data string, 45–90 characters.
Example: JGB 012100123412345678AB19XY1A 0
2D Barcodes
Two-dimensional codes store data as a matrix or stacked rows and achieve a far higher data density than linear barcodes – including error correction. QR Code, Data Matrix, Aztec and PDF417 are the key members.
Frequently asked questions about Royal Mail Mailmark 2D (Data Matrix)
Is the Royal Mail Mailmark 2D (Data Matrix) generator really free?
Yes. You can create as many Royal Mail Mailmark 2D (Data Matrix) barcodes as you like and download them as PNG or SVG – no registration, no watermark, commercial use included.
What resolution does the Royal Mail Mailmark 2D (Data Matrix) barcode have?
PNG files are generated with adjustable module width and up to 600 DPI. For print we recommend the lossless SVG vector format which scales without any quality loss.
Is my data stored?
No. The barcode content is only processed to render the image and is not stored. We only count anonymously how often a barcode type is used.
Can I embed Royal Mail Mailmark 2D (Data Matrix) barcodes in my website or software?
Yes. Every barcode has a stable image URL (see “Embed HTML”) which you can use in websites, label software or spreadsheets.