Legacy ImageMagick Discussions Archive

The title pretty much sums it up. I'm running ImageMagick and I'm really bad at this, it took me a while to understand that I had to open convert.exe from CMD so it wouldn't close itself.

I have a bunch of .svg files located at C:\Users\Cristian\Documents\Downloads\flattr-icons-master\flattr-icons-master\actions\scalable that I would like to convert to 256x256 .ico

I tried and then but I get a 48x48 file instead of the 256x256 one I want. It also has a white background instead of a transparent one.

Plus I was wondering if there was a way to make the whole process faster... like, instead of having to write for each file maybe there is a line of code that can automatize the whole process and convert all files in the folder to .ico with given parameters (no quality loss, 256x256 size, etc)?

So yeah what would be the exact line of code I should use for this purpose?

Thank you for reading.

I am not an expert on ICO files, since I do not use Windows, nor am I an SVG expert. But SVG files are vector files and I believe the size depends upon the density assigned to it. I could be wrong about this. If you want a 256x256 ICO, you need to have a 256x256 size input image. So you must assign a density to achieve this size.

If the size is built in, then you must modify your SVG files to make 256x256 images when displayed or read or resize them using -resize.

density=256*72/48=384

So this might do it.
If you want multiple sizes in the ICO. Then you need to use the ICO define
see
http://www.imagemagick.org/script/comma ... php#define

However, mogrify should be able to do all your images in any one folder at one time.

see
http://www.imagemagick.org/Usage/basics/#mogrify

# create a new directory, so you do not overwrite your old one. Say folder2. Assume you images are in folder1. Cd or whatever the Windows equivalent is to folder1 holding your images.
This assumes that all your svg files need the same density to achieve 256x256 pixel size. A way around this would be to use a large density and then resize to 256x256

or
Of course this assumes your input svg files are created so that they are square. If not, then you have to decide whether you want to pad to square or crop to square. If cropping, then 256x256^^ or "256x256^" in windows syntax. Note there are difference between windows syntax and unix syntax. See http://www.imagemagick.org/Usage/windows/


I have not tested this, since I am not on windows.

Perhaps some Windows user can test and correct me if I am wrong about this.

If you are not on a current version of Imagemagick, the -define may not work. You do not say. It is usually a good idea to identify your version of Imagemagick and platform.

You can get the IM version using

For new users, see
http://www.imagemagick.org/script/comma ... essing.php
http://www.imagemagick.org/script/comma ... ptions.php
http://www.imagemagick.org/Usage/reference.html
http://www.imagemagick.org/Usage/

You can resize to make the image exactly 256x256: For doing all the svg files in a directory, you could use wildcards or the "mogrify" command. But I generally use the Windows "for" command, eg (Windows BAT syntax, so each % is doubled.)

Thank you for answering, but I'm having a problem with both methods.



I googled and it sems like I have to install some libraries for a particular type of .svg or something like that, but I installed Inkscape and It's still the same so I don't know how to proceed.

What happens when you type: Inkscape should fire up interactively, which takes a few seconds, then display the image represented by your SVG file.

If Inkscape doesn't fire up, then it hasn't installed properly or isn't in your path.

If it fires up but reports a problem with the SVG file, then that's the problem.

If Inkscape shows your image, then there is something wrong with the IM installation, or it can't read the first part of the SVG for some reason.