Updated Frequently Asked Questions (markdown)
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<a name="backends"></a>
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<a name="backends"></a>
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## There are two back-ends, canvas and SVG. Which one should I use?
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## There are two back-ends, canvas and SVG. Which one should I use?
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You should use the default, which is the canvas back-end, since it is stable and supported. The SVG back-end is experimental and is not feature complete. The advantage of the SVG back-end is rendering quality, but the disadvantage is that it's currently slower than the canvas back-end.
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You should use the default, which is the canvas back-end, since it is stable and supported. The SVG back-end is *experimental* and is not feature complete. The advantage of the SVG back-end is rendering quality, but the disadvantage is that it's both slower and uses more memory than the canvas back-end.
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<a name="range"></a>
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<a name="range"></a>
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## PDF.js is fetching the entire PDF file from a server. Can it fetch only the required portions for rendering?
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## PDF.js is fetching the entire PDF file from a server. Can it fetch only the required portions for rendering?
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