JS to WASM Examples for direct FPDF* function calls

1# Is it possible to provide an example of bypassing the convenience functions defined in custom.cpp such as this one: https://github.com/paulo-coutinho/pdfium-lib/blob/8fac2c1cc09e5465b9dbb0dcb3156622aa41555e/extras/wasm/utils/custom.cpp#L80 and calling FPDF* functions directly from JavaScript instead?

Some issues such an example would help solve

• control PDF_SCALE for matching dimensions with other PDF renderers
• skip FPDFBitmap_FillRect for a transparent canvas background
• control FPDF_RenderPageBitmap for page rotation and size

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2# How can we call functions that take FPDF_BYTESTRING from JavaScript, such as this one? https://github.com/paulo-coutinho/pdfium-lib/blob/8fac2c1cc09e5465b9dbb0dcb3156622aa41555e/extras/wasm/utils/custom.cpp#L59

Some issues such an example would help solve

• FPDF_LoadMemDocument(buffer, length, **password**)
  become able to load password-protected PDF files

[paulocoutinhox]

Do you this code with rotation?

Anyway i put a new version with your code mixed with mine. It is nice there.

Thanks.

[dandansoysauce]

Hi @cetinsert, do you have any updates on rotation? It seems like it isn’t being used.