# Why do I get a blank .pdf file when trying to export a drawing to .pdf with the exportPdf() function?

 1. [FAQ](/faq)
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3. [Export Questions](/faq/export-questions)

Probably, loading the PDFiumModule is missing from the beginning of your code:

```plaintext
::odrxDynamicLinker()->loadModule(OdPdfiumModuleName);
```

Without this module, PdfUnderlay is invisible and the export saves nothing or saves just an extents rectangle.