PDF with korean standard font not recognized

Martin P 0

Hi, I am having trouble with pdfs containing korean text. This korean text is using two different fonts. One of those is embedded into the pdf, the other seems to be a well-known standard font family called "Gulim", which is not embedded. To even see the text locally, I had to install the supplemental korean font package (windows optional feature). Both the prebuilt-read and prebuilt-invoice models (in all api versions) read the embedded font just fine, but the text using the standard font is completely missing. Is there anything I can do about this? Do I have to enable CJK fonts somewhere for this to work? As a workaround, I have identified that a rendered version of the pdf does indeed work, but I would prefer using pdfs due to the smaller file size, faster processing time, and since I also use location data in physical dimensions, I do not have to convert all points from pixels to inches.

santoshkc 6,955 Reputation points Microsoft Vendor

2024-01-31T07:18:54.6+00:00
Hi @Martin P, Thank you for reaching out to us with your query. Based on your description, it seems that the prebuilt-read and prebuilt-invoice models are not recognizing the "Gulim" font in PDFs containing Korean text. Here are some steps you can take to resolve this issue:

Check if the "Gulim" font is installed correctly on the system. If not, reinstalling the font or use a different font that is supported by the models.

If the font is installed correctly, check the font is embedded in the PDF. If not, embed the font in the PDF using Adobe Acrobat or a similar tool.

I hope it works! Thank you.
santoshkc 6,955 Reputation points Microsoft Vendor

2024-02-01T08:04:11.35+00:00

Hi @Martin P, We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution please do share that same with the community as it can be helpful to others. Thank you.
Martin P 0 Reputation points

2024-02-01T08:42:56.1266667+00:00

Hi @santoshkc Thank you for your reply. I think there is some misunderstanding. The font would have to be installed on the machine doing the actual processing. All I have is an api endpoint and api key from my subscription, I have no direct access to the machine in the cloud, or am I missing something? Regarding your suggestion to embed the fonts: I have no control over the creation of these pdfs, they originate from different customers.
santoshkc 6,955 Reputation points Microsoft Vendor

2024-02-01T12:02:32.4+00:00

Hi @Martin P,

Thank you for clarifying. You are correct that the font would need to be installed on the machine doing the actual processing.

Since you do not have direct access to the machine in the cloud, you may not be able to install the "Gulim" font on the machine. In this case, you can try using a different font that is widely recognized and supported, as I mentioned earlier.

Regarding the suggestion to embed the fonts, I understand that you may not have control over the creation of the PDFs. In this case, embedding the fonts may not be a viable solution.

If none of the suggested solutions work for you, I would recommend contacting Microsoft Azure support for further assistance. They may be able to provide additional guidance or suggest alternative solutions.

I hope this information helps. Thank you.

Share via

PDF with korean standard font not recognized