def simple_page(pdf_out, ascii_text, compress=False, extra_stream=False):
# based on the minimal pdf file of
# https://brendanzagaeski.appspot.com/0004.html
from pyhanko.pdf_utils import generic, writer
from pyhanko.pdf_utils.generic import pdf_name
from pyhanko.pdf_utils.misc import get_courier
resources = generic.DictionaryObject({
pdf_name('/Font'):
generic.DictionaryObject({pdf_name('/F1'): get_courier()})
})
media_box = generic.ArrayObject(map(generic.NumberObject,
(0, 0, 300, 144)))
def stream_data(txt, y):
return f'BT /F1 18 Tf 0 {y} Td ({txt}) Tj ET'.encode('ascii')
stream = generic.StreamObject(stream_data=stream_data(ascii_text, 0))
if compress:
stream.compress()
if extra_stream:
stream2 = generic.StreamObject(
stream_data=stream_data(ascii_text, 100))
if compress:
stream2.compress()
contents = generic.ArrayObject(
[pdf_out.add_object(stream),
pdf_out.add_object(stream2)])
else:
contents = pdf_out.add_object(stream)
return writer.PageObject(contents=contents,
media_box=media_box,
resources=resources)
def empty_page(stream_xrefs=False):
w = writer.PdfFileWriter(stream_xrefs=stream_xrefs)
page = writer.PageObject(contents=w.add_object(
generic.StreamObject(stream_data=b'')),
media_box=generic.ArrayObject([0, 0, 595, 842]))
w.insert_page(page)
return w