One last thing to understand is that your document's coordinates system is affected by transformations: To (kinda) reproduce the above diagram you'd do: doc.text('text'. rotation, scaling, translation) performed after the latest save() call. It's basically going to roll back all transformations (ie. Once you've drawn everything that needed to be transformed, call restore() to put back the document in its initial state.You can then transform your canvas and draw what you need.Use save() before applying a transformation, so that everything that's been drawn before that isn't affected.To achieve that you have two methods: doc.save() and doc.restore().
Write(String) Writes the document to the specified path. Write(NSUrl) Writes the document to the specified URL. Write(String, NSDictionary) Writes the document to the specified path with the specified options. This is exactly how PDFKit works: you apply a transformation on your document, draw everything you need to draw in this transformed context, and set back the document to its previous state. Writes the document to the specified URL with the specified options. What you end up with then, is a rotated text on a straight page: The following are 4 code examples of nfiguration(). If you want to draw rotated text on a page of paper, what you will likely do is physically rotate your page, then write some text horizontally as you'd usually do, then rotate back the page to its normal state. It might help you to see your document as a canvas with physical properties. The main thing to understand is that you don't rotate text or a shape: you rotate your document, as implied by doc.rotate(.).rect(.).
Pdfkit documentation pdf#
Topics Views class PDFView An object that encapsulates the functionality of PDF Kit into a single widget that you can add to your application using Interface Builder. There's no special trick, but it's critical to correctly understand how transformations are applied in PDFKit. PDFKit Display and manipulate PDF documents in your applications.
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