![]() The ImageMagick version I was using in a project didn't support HEIC images, so I had to use ConvertAPI to convert them to JPEGs. Their pricing is fair and the API is easy to implement in a Rails project. I have had a good experience converting different file formats with ConvertAPI. ![]() The advantage of using a 3rd party API that you don't need to worry about the conversion process, managing PDFs versions and edge-cases or implementing new image formats. Most conversions to/from PDFs can be done via an external service. The solution was to add -alpha remove to the convert command. The resulting image would either miss entire sections or have large black/gray elements as overlays. In my use-case, I had to first download the image from AWS S3 (active storage) to /tmp before converting it to a PDF document.Īnother challenge I came across with ImageMagick was converting PDFs with any kind of transparent elements. Instead of having ImageMagick request the file itself and do a transform on the result of that request, download the image to /tmp and work off that, using local transforms. because we use the pre-packaged Ubuntu ImageMagic which is built with the 'installed' option you cannot override the policy from the system path You can disable/reduce options that are enabled by the system policy but once something is disabled you can't re-enable it. I finally got the confirmation from Heroku support, that The Heroku helpdesk article 'How can I override ImageMagick settings in a policy.xml file?' didn't solve the problem. One problem I ran into when deploying to Heroku was that I could not directly read an image served via https, because of the restrictive default policy. is made possible through a partnership with the greater Ruby community. Become a contributor and improve the site yourself. Use the API to find out more about available gems. Instantly publish your gems and then install them. Check out the authoritative website for all the different options at your disposal.Ī disadvantage of ImageMagick is that managing installations and policies can be difficult if you do not have full access to your system. is the Ruby community’s gem hosting service. ImageMagick is an extremely powerful tool, but getting it to do exactly what you want can be challenging at times. Enter fullscreen mode Exit fullscreen mode
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