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Clark

Size of QR Code Font Problem


Dear Supporter,

I'm current working for a customer and preparing PDF printing demo using demo version of QR code IDAutomation2D, following below tech blog from Tim Dexter:
https://blogs.oracle.com/xmlpublisher/quick-quips-on-qr-codes

Everything is fine and we can see the QR code in the PDF demo, my customer has agreed to buy this font as well as development license. However there is little flaw of the output that the whole position of QR code is not at vertical center of the table cell.
After some investigation I noticed the whole QR code is actually a 25 X 25 size in terms of printing unit. I then copied the fonts from PDF into word and noticed every line the the font occupies 4 horizontal printing unit, which led to 7 lines for the whole QR code. The first 6 lines are full of QR code content (6 X 4 = 24) but the last line only has one horizontal printing unit. It looks like there is some empty at the bottom of the QR code. Is there anyway to avoid this? Like change the printing unit to multiple of 4?

Thanks & Regards,
Clark Lin


09-19-18     32 day(s) ago     Views: 89

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Brant

Best Answer

Clark, all IDAutomation 2D matrix fonts are stacked in modules of 4. If this were not done, it would be very difficult to gain control over the point size of the font. When using QR-Code Fonts, the symbol size is always an odd number of modules. The best option may be to leave some white space at the bottom of the symbol or use Data Matrix because the modules in Data Matrix can be generated in increments of 4.

Posted 31 day(s) ago

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