How to best render PDF page for OCR

Discussions about image processing and document imaging.
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How to best render PDF page for OCR

Post by fs051268 » Tue Dec 13, 2016 2:43 pm


I Need to render PDF pages black and White but also color) in order to pass them to a third Party OCR engine.
I saw that the memory usage is quite intense and I want to ask what the best parameters are to use with the function RenderPageToGdPictureImage()?

I use RenderPageToGdPictureImage(300, true) but there are some over loads and I don't know what to use.

Thank you.

Posts: 436
Joined: Wed Nov 22, 2017 9:52 am

Re: How to best render PDF page for OCR

Post by Gabriela » Sun Jan 27, 2019 2:37 pm


The mentioned methods are very well documented here: ... Image.html
For image-based pages only, you should use one of these methods: ... ageEx.html
Kind regards,

GdPicture Team

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