[Term Entry] Python:Pillow Image Module: .paste()

* finish paste.md

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Author: perez-21

content/pillow/concepts/image/terms/paste/paste.md

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+---
+Title: '.paste()'
+Description: 'Pastes an image onto another image at a specified position.'
+Subjects:
+  - 'Computer Science'
+  - 'Data Science'
+Tags:
+  - 'Images'
+  - 'Libraries'
+  - 'Methods'
+  - 'Pillow'
+CatalogContent:
+  - 'learn-python-3'
+  - 'paths/computer-science'
+---
+
+The **`.paste()`** method in Pillow allows pasting one image onto another at a specified position. It is commonly used for image composition, watermarking, or creating collages. An optional mask can be provided to handle transparency.
+
+## Syntax
+
+```pseudo
+Image.paste(im, box=None, mask=None)
+```
+
+**Parameters:**
+
+- `im` (Image | integer | float | string | tuple): The source image to paste or a solid color. If a color is provided (tuple for RGB/RGBA, integer for grayscale, or color string like `"red"`), the `box` parameter must be specified.
+- `box` (tuple, optional): Specifies where to paste the image. If a 2-tuple `(x, y)` is given, it defines the top-left corner. If a 4-tuple `(left, upper, right, lower)` is given, it defines a bounding box, and the pasted image is resized to fit it.
+- `mask` (Image, optional): A mask image controlling transparency. Must be in mode `"1"`, `"L"`, `"LA"`, `"RGBA"`, or `"RGBa"`. Only areas where the mask is nonzero are pasted.
+
+**Return Value:**
+
+This method modifies the original image in-place and does not return a new image.
+
+## Example
+
+This is the background image that will be used for the collage:
+
+![The background image used as the base for the collage](https://raw.githubusercontent.com/Codecademy/docs/main/media/pillow-paste-background.jpeg)
+
+This is the foreground image that will be pasted onto the background:
+
+![The foreground image that will be pasted onto the background](https://raw.githubusercontent.com/Codecademy/docs/main/media/pillow-paste-foreground.jpeg)
+
+This example demonstrates how to paste one image onto another to create a collage:
+
+```py
+from PIL import Image
+
+# Open the background and foreground images
+background = Image.open('background.jpeg')
+foreground = Image.open('foreground.jpeg')
+
+# Resize the foreground image to fit better on the background
+foreground = foreground.resize((200, 200))
+
+# Define the position where the foreground will be pasted (top-left corner)
+position = (100, 100)
+
+# Paste the foreground image onto the background
+background.paste(foreground, position)
+
+# Save the result
+background.save('collage_result.jpeg')
+
+# Display the image
+background.show()
+```
+
+In this example, **foreground.jpeg** is pasted onto **background.jpeg** at the position `(100, 100)`.
+
+The code above produces the image below:
+
+![The final image with the foreground pasted onto the background at a specified position](https://raw.githubusercontent.com/Codecademy/docs/main/media/pillow-paste-collage-result.jpeg)