PDF Conversion to HTML. Text not rendered

I am writing to seek support for my evaluation of different SDKs for PDF to HTML conversion. It is crucial for me to ensure that the styling of the original PDF document is maintained in the HTML version (has to be at least close to the original).

I am currently testing Aspose PDF for Java v23.3, and I have noticed some issues with text rendering. Specifically, in some cases, the text is not rendered at all, while in other cases, only a portion of the text content is rendered. However, I have observed that line separators and highlights are displayed correctly without any issues.

As some of the documents that I work with are legal documents, I regret that I cannot share them. However, I would be grateful if someone could provide me with some guidance or examples of why the text is not being rendered correctly. To me it seems to be a font issue; If someone could provide an example of how to handle fonts that may not be available it would also be useful.

Here’s an example of output html:
image.png (56.4 KB)

@imalyutakin

Can you please share your sample PDF document for our reference so that we can test the scenario in our environment and address it accordingly.