[Java] Load byte array pdf fail

[jkl_0610]

I want to convert pdf to html content. First I use byte array to generate pdf. Then use function saveToStream to get html content

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PdfDocument pdf = new PdfDocument();
pdf.loadFromBytes(byteArrayOutput);
htmlContent = Arrays.stream(pdf.saveToStream(FileFormat.HTML)).findFirst().toString();

I got HTML content in the local. But When I deployed to gitlab, it threw Exception:

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java.lang.IllegalStateException: Cannot found font installed on the system.
        at com.spire.pdf.packages.sprmel.spr┑┽(Unknown Source)
        at com.spire.pdf.packages.sprvil.spr۩┼(Unknown Source)
        at com.spire.pdf.packages.sprvil.spr⑇┼(Unknown Source)
        at com.spire.pdf.packages.sprvil.spr℃┼(Unknown Source)
        at com.spire.pdf.packages.sprgko.spr┑╸(Unknown Source)
        at com.spire.pdf.packages.sprrun.spr▆∭(Unknown Source)
        at com.spire.pdf.packages.sprgyn.spr┺╸(Unknown Source)
        at com.spire.pdf.packages.sprgzn.spr┨╸(Unknown Source)
        at com.spire.pdf.PdfDocumentBase.spr┏∮(Unknown Source)
        at com.spire.pdf.PdfDocument.spr◍╽(Unknown Source)
        at com.spire.pdf.PdfDocument.saveToStream(Unknown Source)

My questions are: What can I resolved this issue(Cannot found font installed on the system). Or Is there any other way to convert pdf byte array to html content?

[Andy.Zhou]

Hello,

Thanks for your inquiry.

In the process of converting PDF to HTML, Spire.Pdf needs to use the fonts installed in the system. Please check the fonts used in your PDF and install them in your test environment. You can also directly install all the fonts which are installed in your local system to the test system.
Besides, if you don't want to install these fonts on your system, you can use the following code to specify the path where the font files are located for Spire.Pdf. That is to say, you can just copy the font files to a folder in the system without installing them. Hope it can help you.

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PdfDocument.setCustomFontsFolders("/root/myfonts/");