This option only works with Tile Caching turned on. This option renders a placeholder image for the previous and next page of the file, making it appear to load much faster than if it were rendering normally. When disabled, rendering will not start until the PDF has stopped moving. We recommend you enable Tile Caching if you will be reviewing and scrolling through multi-page PDFs. This improves panning performance but may slow down overall rendering time. Tile Caching allows PDF regions off-screen to render and cache to memory. If your document is a scan, turning this option off should speed up the total rendering time. When it is disabled, the PDF will not display until all objects have been loaded, which is most useful when viewing vector-based PDF drawings. This option allows the PDF to begin rendering parts of the file incrementally. It is recommended to be turned on however, some PDF content will only render correctly if it is turned off. This option uses the built-in iOS PDF rendering library to render the PDF content. Here is a brief explanation of what each function does: To see instant rendering speeds, check out Studio GO in the What’s New in Revu for iPad 3.0 Video.Īdjusting the rendering preferences may help improve rendering speed. Some documents render slowly because of a large amount of vector content. One of the main reasons this occurs is because of the efforts made towards rendering all markups correctly and generating the Markups list. There are many reasons why some PDF files will render more slowly than others.
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