Getting error while adding page to PdfWriter

[Laxmi530]

Hai,
Actually, I am trying to convert a scanned pdf or non-searchable pdf to searchable pdf by using pytesseract. But I am getting error while adding the page to PdfWriter.
Can someone please help me how can I fix the error. Below is the sample code and I am using fitz to get image of each page.

file = r"C:\Users\Name\Folder_1\Scanned_pdf.pdf"
output_file = PdfWriter()
with fitz.open(file) as pdf:
    for page in pdf:
        _, _, img = pdf_text_box_image(page)
        text_data = pytesseract.image_to_pdf_or_hocr(img)
        print(type(text_data))
        output_file.add_page(bytearray(text_data))
output_pdf = open("output_pdf_file.pdf", "wb")
output.write(output_pdf)
output_pdf.close()

this is the error I am getting

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
[d:\Working\PDF_Extractor.ipynb](file:///D:/Working/PDF_Extractor.ipynb) Cell 52 in ()
      text_data = pytesseract.image_to_pdf_or_hocr(img)
      print(type(text_data))
----> output_file.add_page(bytearray(text_data))
output_pdf = open("output_pdf_file.pdf", "wb")
output.write(output_pdf)

File [~\AppData\Roaming\Python\Python39\site-packages\pypdf\_writer.py:355](https://file+.vscode-resource.vscode-cdn.net/d%3A/Working/~/AppData/Roaming/Python/Python39/site-packages/pypdf/_writer.py:355), in PdfWriter.add_page(self, page, excluded_keys)
    334 def add_page(
    335     self,
    336     page: PageObject,
    337     excluded_keys: Iterable[str] = (),
    338 ) -> PageObject:
    339     """
    340     Add a page to this PDF file.
    341 
   (...)
    353         The added PageObject.
    354     """
--> 355     return self._add_page(page, list.append, excluded_keys)

File [~\AppData\Roaming\Python\Python39\site-packages\pypdf\_writer.py:286](https://file+.vscode-resource.vscode-cdn.net/d%3A/Working/~/AppData/Roaming/Python/Python39/site-packages/pypdf/_writer.py:286), in PdfWriter._add_page(self, page, action, excluded_keys)
    280 def _add_page(
    281     self,
    282     page: PageObject,
    283     action: Callable[[Any, IndirectObject], None],
    284     excluded_keys: Iterable[str] = (),
    285 ) -> PageObject:
--> 286     assert cast(str, page[PA.TYPE]) == CO.PAGE
    287     page_org = page
    288     excluded_keys = list(excluded_keys)

TypeError: bytearray indices must be integers or slices, not str

Thanking you in advance.

[pubpub-zz]

pypdf is a library to assemble, extract text, images, merge pages...What you are looking for is a pdf generator to create your pages (such as fpdf2)

[Laxmi530]

Thanks @pubpub-zz for your response.

Actually, I want to assemble pages. Already this image_to_pdf_or_hocr metho returning a pdf page. Just wanted to assemble pages one after another.

Thanking you in advance.

[pubpub-zz]

pypdf can do the job of assemblu. the only point is to first generate the page from your text 🙂