Slow loading of RTF files

I have a large amount(4TB) of files that need to be converted. They are of RTF format. I had some performance issues with the loading part. I narrowed it down to being documents with both text and images. The ones with only text have fast loading time, but the ones with images are slow. Is there any way to speed up the loading of the specified types of document? I tried playing with the load options, but I didn’t manage to speed up anything.

The time ratio of loading documents with and without images are 8:1.

Thankful for any suggestions!


Can you send us an example of your RTF file so that we can investigate this?


Hey Mario, thanks for your fast reply! I’ve looked for a way to upload, but I’ve only seen the image upload button. Where can I upload my example?


You can send the file to us by submitting a support ticket or by sending us an email.
Please check our Contact page.

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This issue was resolved with this bugfix version:

Or with this NuGet package:
Install-Package GemBox.Document -Version 35.0.1197-hotfix