SVG support

[evgeni]

Via mail:

An SVG support would be a nice feature, so that a resize of the picture is easy to do.

[dislick]

I initially thought I needed SVG support as well (for printing the QR codes). However you can easily upscale the PNG in Photoshop and it will not look pixelated if done correctly.

In Photoshop:

• Go to Image -> Image Size
• Enter your desired resolution
• Make sure you set Resample to Nearest Neighbor (hard edges)

Still, SVG support would be nice to have.

[dmyers]

Also if you use the resize tool (cmd + t on mac) enlarge, you can choose Nearest Neighbor on the Interpolation option before committing.

[BrainStone]

Most image editing software supports some kind of "Nearest Neighbor", "Hard Edges" or "Pixelated" interpolation, so that should work. Though I agree. Having the image as an SVG would be pretty useful, as the size should be relatively small compared to to PNG, especially at higher resolutions.

To reduce the filesize of the png file you can use opting.
As there really is not much data, some suprisingly low compressing settings may reduce the best result. And since the file is really small, doing an exhaustive search is no big deal, so use this command to absolutely minimize the file (reduced from 4356B to 633B (85.47% reduction) for me): optipng -zm1-9 -zc1-9 -zs0-3 -f0-5 -strip all -- qr_code.png
So I take the size argument back.