Resize PDF Document in Python - Change PDF Page Size in Python

resize-pdf-document-in-python.md

Learn how to Resize PDF Document or Change PDF Page Size in Python

resize-pdf-document-in-python_method_1.py

# Step 1: Import the Aspose.PDF module
import aspose.pdf as ap  

# Step 2: Load the PDF document
document = ap.Document("input.pdf")  

# Step 3: Resize all pages to a predefined size using the PageSize enum
for page in document.pages:
    page.resize(ap.PageSize.A3)

# Step 4: Save the updated PDF
document.save("output_a3.pdf")

resize-pdf-document-in-python_method_2.py

# Step 1: Import the Aspose.PDF module
import aspose.pdf as ap  

# Step 2: Load the input PDF file
document = ap.Document("input.pdf")  

# Step 3: Define new page dimensions in points (Letter size = 612 x 792)
new_width = 612
new_height = 792

# Step 4: Loop through all pages and apply the new size
for page in document.pages:
    page.set_page_size(new_width, new_height)

# Step 5: Save the resized PDF to disk
document.save("output_custom_size.pdf")