Barcode PDF generation

[david.wylie]

I’m assuming this is running in a server module in Anvil (and not as an Uplink script).

Anvil does give you a small amount of ephemeral disk space under /tmp (but you cannot rely on anything saved there between server calls).

So you need to either find a way to save your file to /tmp/ or save it as a BytesIO object.

Here’s a link with an example of something similar :

Creating and manipulating pdf files via PyPDF2 and FPDF

Hi Niels, The following examples work for me in Python 3: # trying PyPDF2 @anvil.server.callable def test_pdf_read(): pdf_bytes = app_files.foo.get_bytes() # Create a BytesIO object that can be used directly as a file file = io.BytesIO(pdf_bytes) pdfReader = PyPDF2.PdfFileReader(file) print(pdfReader.numPages) # trying FPDF @anvil.server.callable def make_pdf(): pdf = FPDF() pdf.add_page() pdf.set_font('Arial', 'B', 16) pdf.cell(40, 10, 'Hello World!') byte_string = pd…

There are other examples in the forum.