First commit

.gitignore

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+.vscode

LICENSE

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+MIT License
+
+Copyright (c) 2018 cgarbin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# python-combine-pdfs

python-combinepdf.py

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+"""
+Combines PDF files into one PDF file.
+
+Sources for this code:
+
+* https://automatetheboringstuff.com/chapter13/
+* https://www.geeksforgeeks.org/working-with-pdf-files-in-python/
+* https://pythonhosted.org/PyPDF2/
+* https://stackoverflow.com/a/49927541/336802
+
+This program combines all specified PDF files into one PDF file. The
+files are combined in the order they are given. Use '-o output.pdf' to
+specify the output file name (defaults to combined.pdf if not specified).
+"""
+
+from argparse import ArgumentParser
+import contextlib
+import PyPDF2
+
+
+def main():
+    ap = ArgumentParser(
+        description='Combines several PDF files into one file.')
+
+    # The files to combine
+    ap.add_argument('files', metavar='file1 file2 ...',
+                    help='Files to combine', nargs='+')
+
+    # The output file (defaults to combined.pdf if not specified)
+    ap.add_argument('-o', '--output', nargs='?',
+                    const='combined.pdf', default='combined.pdf',
+                    help='Output file name (combined.pfd, if not specified)')
+
+    args = ap.parse_args()
+
+    # Workaround for PyPDF2 empty output file: keep input files open
+    # See https://stackoverflow.com/a/49927541/336802
+    with contextlib.ExitStack() as stack:
+        pdfMerger = PyPDF2.PdfFileMerger()
+        files = [stack.enter_context(open(pdf, 'rb')) for pdf in args.files]
+        for f in files:
+            pdfMerger.append(f)
+        with open(args.output, 'wb') as f:
+            pdfMerger.write(f)
+
+if __name__ == '__main__':
+    main()