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    <p><strong>UPDATE:</strong></p> <p>This no longer works in iOS 6. Quick Look runs in another process using XPC. See [here][3] for more details. I don't foresee any way to customize QLPreviewController. The following answer remains for anyone interested for pre-iOS 6. </p> <hr> <p>If you want to simply remove the action button you need to subclass <code>QLPreviewController</code>. Then in <code>-viewWillAppear:</code> you need to remove the action button by calling <code>[[self navigationItem] setRightBarButtonItem:nil];</code> This will also remove the ability to share files with other apps. If you are fine with that loss, then that's the easiest solution. One thing to be aware of is that <code>QLPreviewController</code> is NOT intended to be customized. You can check out this <a href="https://github.com/rob-brown/RBFilePreviewer" rel="nofollow noreferrer">repository</a> on Github. It contains a QLPreviewController that is already safely subclassed. You just need to add the one line to remove the action button. The repo also has some other conveniences. </p> <p>The better but more complicated solution is to use <code>UIDocumentInteractionController</code>. From what I understand of <code>QLPreviewController</code> is that it's built using <code>UIDocumentInteractionController</code>. <code>QLPreviewController</code> was made for general use and easy addition. <code>UIDocumentInteractionController</code> gives much more control, but is harder to use. I can't sufficiently describe how to use it here. I recommend checking out WWDC 2010 session 106 Understanding Document Interaction Controller. </p> <p>As for disabling cut/copy/paste, you can't do that with <code>QLPreviewController</code>. You might be able to do that with <code>UIDocumentInteractionController</code>, but I wouldn't count on it. Depending on what files you want to display, you may be able to do a completely custom implementation, but that's a lot of work. It's relatively easy to make viewers for plain text, photos, videos, and PDFs. Office documents are more effort than it's worth. </p> <p><strong>EDIT:</strong></p> <p>I've built the ability to remove the action button right into <code>RBFilePreviewer</code> so you don't have to worry about doing it yourself. </p>
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    1. POHow to Disable QLPreviewController print Button
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    1. COThanks. Only worked when I setRightBarButtonItem:nil in "viewDidAppear"
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    2. CO-viewDidAppear is an odd place to put that. Does it work in -viewWillAppear? That would be much better if possible. Also, are you going to upvote/accept my answer as correct?
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    3. COIt turns out that removing the action button isn't as trivial as I thought. QLPreviewController has a lot of quirks underneath. RBFilePreviewer now has that feature built in and takes care of all the different cases. Plus, I fixed a "bug" in the original QLPreviewController that causes it to not show the document navigation bar when pushed instead of being presented modally. You can also see a demo of RBFilePreviewer in my demo repository: https://github.com/rob-brown/Demos.
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