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[Python] Base64 decode to pdf on Windows OS with python

Discussão em 'Python' iniciado por Stack, Novembro 25, 2025.

  1. Stack

    Stack Membro Participativo

    I am using Gmail API's to download email with attachments

    I am saving all the attachment by decoding base64 string that API provides

    file_data = base64.urlsafe_b64decode(base64data.encode('UTF-8'))
    with open(<filePath>, 'w') as f:
    f.write(file_data)


    All type of attachments are downloaded properly and code works fine on both the platform (*nix and windows).

    but PDF attachment works on *nix but fails on windows

    PDF on Windows


    File is decoded and saved with correct name and extension, but when I try to open the pdf with reader(tried Adobe reader/Foxit reader), it fails with the random font encoding issue

    what I have noticed and I think potential issue is, under document properties, font section of decoded pdf and font section of original pdf, downloaded via gmail web inerface is different ( difference being in former decoded file font's information is missing or not right)

    I do not have much knowledge on decoding PDF's with custom fonts

    can someone point me in to right direction as to how can i decode base64 with custom fonts?

    Continue reading...

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