Ellibertinoinvisiblepdf Top -
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The Redacted PDF Kit
If you suspect a PDF contains hidden information, these are the industry tools: Since the work is over 200 years old, it is in the
packet = BytesIO() c = canvas.Canvas(packet) c.setFillColorRGB(1,1,1) # white c.drawString(10, 10, "This is invisible text") c.save() packet.seek(0) new_pdf = PyPDF2.PdfReader(packet) existing = PyPDF2.PdfReader(open("original.pdf", "rb")) output = PyPDF2.PdfWriter() output.add_page(existing.pages[0]) output.add_page(new_pdf.pages[0]) with open("invisible_output.pdf", "wb") as f: output.write(f) 1) # white c.drawString(10