Python Automatic Tools

Some useful tools for Python, instructed by ChatGPT.
Current Jobs Done:
- ✅ PDFMerger: Merge Several PDFs into one large PDF file.
- ✅ PDFSpliter: Split One Large PDF into several PDFs.
- ✅ PDFWatermark：Add watermark ( ⚠️ watermark file must be provided beforehead)
- ✅ PNG2PDFConverter: Convert 500+ png pictures into one large PDF file.
- ✅ FileNameChanger：Modify all the names of the files in the folder.
- ✅ EncodingModifier：Encoding Converter. Microsoft Excel specifies "UTF-8-SIG" method(instead of single UTF-8), which is REALLY disturbing. The script changed it from "UTF-8" to "UTF-8-SIG" automatically (and in a batch).
- ✅ ExtractExcelSheets：Extract all the sheets in an excel(xlsx/ xls) file.
- ✅ JSON2DB： Extract data from standard JSON file to sqlite3 in Python.
- ✅ PointsSurface: Given some points in 3-D axis. Display the surface that can best fit all of them.
- ✅ DatabaseEncrypt: (Python Version <= 3.8): Give a database and use sqleet package to encrypt it, meanwhile copying all the data from the source file
- CSV-Merger: Merge CSV files(with same columns) into 1 larger file