QR code is a simple way to transform any text or URL into a graphical image. It is helpful when you want to hide confidential data or URL from unwanted persons. You can also use QR code to write a email message. Despite the fact that any one can read the QR code with Barcode/QRcode scanner, undoubtedly, it adds an extra layer of encryption to your data. No one can read them with the empty eyes.
While tons of QR code generating applications are there, we are here to introduce a simple and shortcut method of generating QR codes.
You can easily generate QR code with Google API or Google Drive.
Use Google API to create QR Code
Simply paste the following URL at your browser and append the text or URL at the end of it.
https://chart.googleapis.com/chart?chs=150x150&cht=qr&chl=
Example: QR code for text:
https://chart.googleapis.com/chart?chs=150x150&cht=qr&chl=Hello Dolly!
Result: 
Example: QR code for URL
https://chart.googleapis.com/chart?chs=150x150&cht=qr&chl=https://www.techtipsapp.com
Result: 
Generate QR Code in Google Drive
You can create QR codes in Google drive too. All you need to do is to create a new spreadsheet, type or paste any text or URL at the first cell (A1) and paste the following at the adjacent cell in the next column (B1).
=image("https://chart.googleapis.com/chart?chs=150x150&cht=qr&chl=" & A1)Hit “Enter” and see the magic.
By this method, you can generate QR codes in bulk. Just place the texts/URLs at the next cells of the first column (A) and drag the right-hand-bottom corner of the cell B1.
The corresponding QR code for each cell in column A will be created at the adjacent cell in column B. That’s it!
This is really cool. I notice that in the Google Spreadsheet to copy and paste the generated QR Code image, gives you the text string supplied to create the QR Code in the first place. IF I paste it into a Google Doc (not a spreadsheet) it is converted into graphic which when scanned then gives the text string.
What I want to do is to create a QR Code from Concatenated text and create a png or jpg file that I can then name and save. Is there a way I can send Google the text string and get back an image file?
At this time we’ve no clue about whether Google Chart API will allow to do so. But we’re researching on your issue using the Google QR Code API (
http://code.google.com/p/qr-code-api/).Thanks for dropping your valuable response here. Stay tunes with us.