QR codes help - General Sign Topics

General Sign Topics

QR codes help

Posted by Mike Grant on February 15, 2012 at 9:16 pm

I have a job to do that includes a QR code "pattern" I had a copy given to me but it was of a low resolution. 🙄 I tried countless times to trace it in Corel but could only get a rough finish. I ended up drawing it from scratch which took a fair bit of time that I hadn’t accounted for. So my question is this, how are these bar codes made and what is the easiest way of reproducing these as a vector and is there a limitation on the reproduced size of the finished code.

Neil Fox replied 12 years, 2 months ago 9 Members · 11 Replies
11 Replies

Andrew Blackett

Member
February 15, 2012 at 9:20 pm

Hi Mike,

I used http://qrcode.kaywa.com/ on a recent job (on the laser engraver) It’ll download as a png graphic but they trace beautifully in corel.

I think I got these down to about 15mm square on the tags – don’t think theres a maximum size, as long as the lens on the reading device can fit it in.

Andy
Chris Wool

Member
February 15, 2012 at 9:43 pm

just done a few from my android phone using QRdroid its a bit map but all square and straight lines. so enlarged well.
when i find my phone i will trace one to see what happens.
Andrew Blackett

Member
February 15, 2012 at 9:46 pm

Just found this one which negates the tracing step;

http://qrcode.littleidiot.be/

It will let you download the finished code as pdf, eps and others

Andy
Chris Wool

Member
February 15, 2012 at 10:01 pm

thanks andy
Denise Goodfellow

Member
February 15, 2012 at 10:28 pm

I don`t know if this is true. but today I heard that they can be used to make your phone dial a high rate number (scam)
John Gregson

Member
February 15, 2012 at 11:40 pm

quote :

used to make your phone dial a high rate number

They can be made to direct you to anything really, normally websites etc.
Tobias Redig

Member
February 16, 2012 at 7:03 am

http://www.terryburton.co.uk/barcodewriter/generator/

Can get it as an EPS file there.
Chris Windebank

Member
February 16, 2012 at 9:13 am

this one for me, nice crisp EPS
http://delivr.com/qr-code-generator
Richard.Peirce

Member
February 16, 2012 at 10:52 am

One thing to consider when creating these QR codes is to track if they are actually being used, otherwise it could be a waste of time and until all mobile devices have an automatic QR scanner in them, people have to download a QR scanner to even read them!

With this in mind, one everyone could probably use, Google Analytics! Use the below link to create a link, set it up as a QR monitor relating to your campaign/advertising and monitor to see how much its used. Once you have the link, use a QR generator to get your QR code, and you can monitor its use!
http://support.google.com/googleanalyti … swer=55578

Then use the link in something like the one Andy posted: http://qrcode.littleidiot.be/
Mike Grant

Member
February 16, 2012 at 5:22 pm

Thanks for all your help guys. 😀
I shall check out all the links when I have a chance.
Neil Fox

Member
February 24, 2012 at 9:36 am

I have done a few QR codes. Many of them are created as png or jpg images.

I have just proportionately expanded them in Flexi or Illustrator from the png or jpg. As they are perfectly square (black & white), they expand with no pixilation.

The largest one I have printed has been an 8ft x 8ft one. It was enlarged from a jpg file supplied by the customer.