Question using exported PDF files with transparency about uiimage-pdf

[skela]

I generate PDFs using Inkscape via Print File and I can tell you I have no problems with this library to show transparency. Did you make sure the ImageView you stick the PDF image into has a clear background?

[trailblazr]

Yep, basically applied opaque = NO and applied renderingmodeOriginal to the UIImage and backgroundColor = [UIColor clearColor] to the UIImageView, no change in result yet. I will try the "Print from Inkscape" process... thx for that hint. I will report as soon as I have a result.

[trailblazr]

Okay, I tried to fix my issue… and finally succeeded… but it is a PITA in the process. I had to reopen (aka import) every "Saved as..."-EPS-File from Photoshop (PDF-Files did not work because InkScape could not ungroup the icon-vector-shape from the white background there) in InkScape. Manually ungroup the vector shape from the background (white box), then remove the background, then "Print as File..." from InkScape to the volume again. This removed the white box and really optimized the pdf to a very small size. I will try to document this process soon in my blog and then put a last comment on this issue to close it.

As said... it is a clumsy process, that makes keeping exporting 3 different PNG's rather fine if those 3 different sizes were okay for you. I needed more than 3, so it is economically worth it and saves some binary bytes in the deployed app in the end.

Cheers, all.

[skela]

Sorry to hear that, but it certainly seems like your having a problem with your tools there ;) I've got 1 PDF that I can scale up and down without any issues, and this library works well for that, best one I've seen (Although I wish I could use SVG files directly (But all the svg libraries out there are horrible)).

[trailblazr]

@skela Yep, without a doubt it is a really nice and clean Category. I love to use it and now it works great. It opens up new possibilities to auto adjust icons depending on the device orientation and the device resolution which is a great thing. I am really happy I found this piece of art here. It helps with the transition to the new way of iOS fragmentation-space made up by lots of different screen-scales and screen-sizes now.

[trailblazr]

I actually wrote down my experiences and a short How-to how I fixed the alpha blending / transparency issue in a blogpost.

See here for more: http://www.thetawelle.de/?p=4234