CODEWITHSUNDEEP
iphoneobjective-cpdfcore-graphics
user351711
user351711

Reputation: 3301

Displaying large PDF document iPhone

After many hours of googling I thought I would see if anyone knew the answer.

I have a large PDF file (30mb) which I was using the UIWebView to display but it is painfully slow when trying to scroll through pages and when you rotate the iPhone/iPad it doesn't draw properly on the screen till you have scrolled through a few pages.

So I have been looking into using the CGPDFDocumentRef to display the PDF. Before I go any further is there an easier way to do this, or any examples/open source solutions to do this before I spend a long time trying to replicate the UIWebView or something similar to display a large PDF.

I assume someone else has had this problem?

Many thanks for any help

Upvotes: 2

Views: 1384

Answers (1)

Brandon
Brandon

Reputation: 2920

I've been building one of these for a while now. I'll tell you, both approaches have difficulties. The CGPDFDocumentRef path is the one that I've taken, and it's worked out pretty well.

A good place to start is here, with Apple's example, ZoomingPDFViewer. You'll get a good idea of how that CGPDF* stuff works. If you're looking to put something together in a hurry, you might want to start with this guy's example. In fact, the author's website has a huge list of resources to use when you run into problems.

Upvotes: 2

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