Small updates

.gitignore

@@ -1,2 +1,3 @@
+.venv/
 venv/
 *.egg-info/

README.md

@@ -1,4 +1,4 @@
-# a4tolettersize
+# converttolettersize
 Convert smaller format pdf document to letter size while maintaining size and proportion of content.
 
 This will resize the pages in the document to letter size and center the existing content.

build/lib/convert.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+import click
+import fitz  # Import PyMuPDF
+
+# Define the conversion function with click decorators for CLI integration
+@click.command()
+@click.argument('input_file', type=click.Path(exists=True))
+@click.argument('output_file', type=click.Path())
+def convert_to_lettersize(input_file: str, output_file: str) -> None:
+    """
+    Converts PDF document to Letter size, preserving the content's size and proportions.
+    """
+    letter_size = [612, 792]  # Letter size in points (8.5 x 11 inches)
+    new_doc = fitz.open()  # Create a new empty document
+
+    with fitz.open(input_file) as doc:
+        for page in doc:
+            original_rect = page.rect
+            scale = 1  # Default scale is 1 (no scaling)
+
+            # Calculate the new width and height based on scaling
+            new_width = original_rect.width * scale
+            new_height = original_rect.height * scale
+
+            # Calculate translation to center the content
+            translate_x = (letter_size[0] - new_width) / 2
+            translate_y = (letter_size[1] - new_height) / 2
+
+            # Create a new page with Letter dimensions
+            new_page = new_doc.new_page(width=letter_size[0], height=letter_size[1])
+
+            # Define the target rectangle for the scaled and centered content
+            target_rect = fitz.Rect(translate_x, translate_y, translate_x + new_width, translate_y + new_height)
+
+            # Insert the scaled and centered content of the current page into the new page
+            new_page.show_pdf_page(target_rect, doc, page.number)
+
+    # Save the new document
+    new_doc.save(output_file)
+    click.echo(f"Converted file saved to {output_file}")
+
+if __name__ == '__main__':
+    convert_to_lettersize()
+

setup.py

@@ -3,7 +3,7 @@
 setup(
     name='ConvertToLetterSize',
     version='0.1',
-    py_modules=['converttolettersize'],
+    py_modules=['convert'],
     install_requires=[
         'Click',
         'PyMuPDF',