- 1 year ago
Add a unique File ID to PDF documents received
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To add a unique File ID to PDF documents that you receive, you can follow these general steps:
Generate a Unique File ID:
- Use a unique identifier generation algorithm, such as UUID (Universally Unique Identifier), to create a unique ID for each received PDF document.
- In Python, you can use the
uuid
module to generate UUIDs. For example:pythonimport uuid
file_id = str(uuid.uuid4())
Read the PDF Document:
- Use a PDF processing library, such as PyPDF2 or pdfrw, to read the content of the PDF document.
- Install the library using
pip
:pip install PyPDF2
Modify the PDF Document:
- Locate the appropriate location in the PDF document where you want to add the File ID, such as in the header, footer, or a specific text box.
- Use the PDF processing library to add the File ID to the PDF document at the desired location.
- For example, with PyPDF2:python
import PyPDF2
with open('path/to/input.pdf', 'rb') as file:
reader = PyPDF2.PdfFileReader(file)
writer = PyPDF2.PdfFileWriter()
for page_num in range(reader.getNumPages()):
page = reader.getPage(page_num)
page.mergePage(PyPDF2.pdf.PageObject.createBlankPage(page))
page.mergePage(PyPDF2.pdf.PageObject.createTextObject(f'File ID: {file_id}'))
writer.addPage(page)
with open('path/to/output.pdf', 'wb') as output_file:
writer.write(output_file)
Save the Modified PDF Document:
- Save the modified PDF document to a new file or overwrite the existing file, depending on your requirements.
- The code snippet above demonstrates how to save the modified PDF document to a new file called
output.pdf
.
By following these steps, you can generate a unique File ID and add it to the PDF documents you receive. Adjust the code according to your specific requirements and preferred PDF processing library.