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Add a note about why we do clean PDF in a completely overkill way

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jvoisin 2018-04-03 21:45:05 +02:00
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doc/implementation_notes.md
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@ -25,6 +25,10 @@ handle PDF. But apparently, people are ok with [pdf redact
tools](https://github.com/firstlookmedia/pdf-redact-tools), that simply
transform the PDF into images. So this is what's MAT2 is doing too.
Of course, it would be possible to detect images in PDf file, and process them
with MAT2, but since a PDF can contain a lot of things, like images, videos,
javascript, pdf, blobs, … this is the easiest and safest way to clean them.
Images handling
---------------