The GraphicsMagick homepage has a list of differences. But it might be a bit biased. In general, GraphicsMagick seems to be faster (see e.g. this article), with a more stable API and less bugs. Many big websites uses it instead of ImageMagick.
I was looking to do something similar and ended up here (I guess your “as many keywords as possible” thing worked). Here’s what I came up with that worked for me. (geometry and tile adjusted for your needs) montage -border 0 -geometry 660x -tile 3×3 tile* final.jpg The files get added to the tiles horizontally, … Read more
I know this is old post but I spend my all day to make it work, so here are the steps that helped me: Download ImageMagick Binary Release – http://www.imagemagick.org/script/download.php Install in C:\imagemagick, on last step check “Add application directory to your system path“ Download Imagick DLL: PHP5.6.x version from http://www.peewit.fr/imagick/ (I have 5.6+ version … Read more
This question is pretty old, but I had a similar problem and I think I found the solution. The documentation for the -page option says “This option is used in concert with -density”, but the relationship between the options seems a little unclear, possibly because the documentation is geared towards raster images. From experimenting with … Read more
Try using -gravity North (this will move your text to the top of the image) and then adding an offset (-annotate +0+100) to move down your text: convert temp.jpg -gravity North -pointsize 30 -annotate +0+100 ‘Love you mom’ temp1.jpg
Ran into this one today, found this: https://www.imagemagick.org/discourse-server/viewtopic.php?t=20234 Based on that, these should all work: -flatten -alpha flatten -alpha remove I’m currently using the below for my specific case which works great: convert -thumbnail “1280×800>” -density 300 -background white -alpha remove in.pdf out.jpg
Obviously there can be more options, like borders and etc, but if you just want an image of width x height of a given hex color, it’s pretty straight forward. Here’s all it takes to make an 100×100 image of a solid dark red: convert -size 100×100 xc:#990000 whatever.png
If you want to keep the original resolution (lossless) you can try the following command: convert png.png -background white -page a4 myoutput.pdf Based on a comment posted before: https://stackoverflow.com/a/24573341/6747994 @m4tx This command only makes sense if the picture has a resolution above 500x800px, it does not zoom in, to avoid pixelated thumbnails.
I would recommend using Wand (explanations follows). I was looking for proper binding to ImageMagick library, that would: work error/problem free be regularly maintained and up to date allow nice objective Python But indeed python API (binding) has too many different (mostly discontinued) versions. After reading a nice historical overview by Benjamin Schweizer it has … Read more
You want the reprocess! method of Paperclip::Attachment. See the docs. class User < ActiveRecord::Base has_attached_file :avatar, :styles => { :medium => “300×300>”, :thumb => “100×100>” } end # Console… >> User.find_each { |u| u.avatar.reprocess! } Also, according to the comments before the reprocess! method, there’s a paperclip:refresh Rake task, which might be easier.