how to get the base64 of a pdf while printing report ?

Question

I am seeking assistance in generating the Base64 representation of a PDF file that I intend to print. The goal is to merge an image into this PDF using PyPDF2. I have successfully managed to merge images into PDFs, but I need guidance on obtaining the Base64 representation of the existing PDF file so that I can include it in my project.
is it possible if somehow i could get base64 of  report which i am printing using *_get_report_values*  and return my modified pdf ?

Dan K. · Answer

I did this in v16 with something like this:
report = self.env.ref('stock.action_report_delivery')
pdf_content, dummy = self.env['ir.actions.report'].sudo().with_context(lang=self.partner_id.lang)._render_qweb_pdf(report, self.id)
data = base64.encodebytes(pdf_content)
Hope it helps :)-

Pablo Castelo · Answer

Hope this snippet helps
from io import BytesIO
import base64
input_file = fields.Binary('File')
outputb64 = BytesIO(base64.b64decode(self.input_file)

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