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GroupDocs.Merger for Python via .NET allows you to combine multiple archive files into a single archive programmatically. The library supports common archive formats such as ZIP and TAR — no external compression tools required.

1. Create an instance of the Merger class and pass the path to the first (base) ZIP file.
2. Call merger.join() with the path to each additional ZIP file to append.
3. Call merger.save() with the desired output path to write the merged archive.

from groupdocs.merger import Merger

def merge_archive_documents():
    # Load the first archive as the merge base
    with Merger("./input.zip") as merger:
        # Append the second archive
        merger.join("./input2.zip")
        # Save the combined archive
        merger.save("./output.zip")

if __name__ == "__main__":
    merge_archive_documents()

Binary file (ZIP, 1 KB)

• Load base archive: Merger("./input.zip") opens the first ZIP archive as the merge base inside a context manager.
• Append second archive: merger.join("./input2.zip") appends all entries from the second archive. Call join again for each additional file.
• Save result: merger.save("./output.zip") writes the merged archive to disk.

• How to merge archives to ZIP in Python via .NET

GroupDocs.Merger for Python via .NET provides online ZIP Merger App and TAR Merger App, which allow you to try them for free and check their quality and accuracy.

• Merger — main class; join, save methods.

• Merge PDF files
• Get document information
• More use-cases and complete Python via .NET sources