I've never used this API but perhaps the problem is that you are thinking of PDF pages as having a size in pixels. They absolutely do not, because they are a rich collection of text, multiresolution images and vector. The fact that your PDF pages might contain only a single resolution image is of no importance (yes, none). PDF files do not have a DPI even if tools claim they do. They DO have a real size in inches/mm. Clearly when painting a PDF on screen an API will ASSUME a resolution to map to screen pixels, based on the size in inches/mm only, since monitor inches aren't real.
A further complication is that each page may have multiple boxes. An API might use the media, crop, art or trim box for size in inches/mm with a default for missing boxes. So there is much more to be concerned with than when using a bitmap format. On Wednesday, 1 June 2016, David Catmull <davidcatm...@gmail.com> wrote: > I'm trying to use PDF files as image templates for my segment controls, but > they come out too small. > > I created them using Affinity Designer, adding the "Template" suffix. They > end up getting drawn at half size in my controls. I tried changing the > export DPI from the default (~144) to 72, but it had no effect. > > Exporting them as png instead works fine - at runtime, that is. Xcode > 7.3.1's editor shows them at half size like the PDFs. This only happens > with my custom images, never with standard system images. > > The images are 16x16, exported using Designer's "PDF (flatten)" setting. My > segment control is "small square" style, with 37px wide segments. > > How can I make them display at the right size? I can make do with pngs if > necessary, but for one thing I like not having to have @2x versions of > everything. Plus Apple's documentation recommends PDF for template images, > so it ought to work. > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com <javascript:;>) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/cocoa-dev/aandi%40quite.com > > This email sent to aa...@quite.com <javascript:;> _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
