Addition of PDF merging

PDF merge/README.md

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+### Merging Multiple PDFs using Python
+
+You Need  to open your favourite Editor , create folder name 'PDFmerge'  inside create file 'mergePDF.py' copy and paste code from mergePDF.py file this repo. 
+
+Open Terminal type 
+
+```py
+pip install PyPDF2
+
+```
+
+You need to keep PDF files that you want to merge in Python’s working directory.Of course, you can change the directory using Python code. For simplicity of code, I am placing the PDF files on the working directory.
+
+
+```py
+python3 mergePDF.py 
+
+```
+
+
+After Runnig this Code you will get output as the Merged pdf file.

PDF merge/mergePDF.py

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+from PyPDF2 import PdfFileMerger
+
+# array of PDFs which need to merge 
+pdfs = ['repo.pdf', 'python.pdf']
+
+merger = PdfFileMerger(strict=False)
+
+for pdf in pdfs:
+    merger.append(pdf)
+
+merger.write("Merged_result.pdf")
+print('PDF Merged Wohh !!')
+merger.close()

PDF merge/requirements.txt

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+PyPDF2==1.26.0