Manage Stamp By ID

In PDFs with multiple rubber stamps, it can be useful to control individual stamps based on their ID. The ‘hide_stamp_by_id()’ and ‘show_stamp_by_id()’ methods allow selective visibility control. This example shows how to:

• Add multiple stamps with unique IDs
• Hide a stamp on a specific page
• Show a stamp on another page

By using ID-based operations, you avoid tracking stamps by page position or other attributes.

1. Create a PdfContentEditor instance.
2. Bind the input PDF document.
3. Add rubber stamps with specific IDs.
4. Hide and shows stamps based on their IDs and page numbers.
5. Save the updated PDF document.

import aspose.pdf.facades as pdf_facades
import aspose.pydrawing as apd
from io import BytesIO
import sys
from os import path

sys.path.append(path.join(path.dirname(__file__), ".."))

from config import set_license, initialize_data_dir


def manage_stamp_by_id(infile, outfile):
    # Create PdfContentEditor object
    content_editor = pdf_facades.PdfContentEditor()
    # Bind document to PdfContentEditor
    content_editor.bind_pdf(infile)

    content_editor.create_rubber_stamp(
        1,
        apd.Rectangle(200, 380, 180, 60),
        "Draft",
        "Draft stamp for ID-based operations",
        apd.Color.orange,
    )

    content_editor.create_rubber_stamp(
        2,
        apd.Rectangle(200, 480, 180, 60),
        "Draft",
        "Draft stamp for ID-based operations",
        apd.Color.orange,
    )

    # Apply ID-based stamp operations
    content_editor.hide_stamp_by_id(1, 1)
    content_editor.show_stamp_by_id(1, 2)

    # Save updated document
    content_editor.save(outfile)