"""Parse input like '1-3,5,7-9' into groups of page indices, preserving groups. Returns: List[List[int]] where each inner list is a group of 0-based page indices.

def merge_pdfs(pdf_list, output_file): Merge a list of PDFs into output_file. Returns (True, message) on success or (False, error_message) on failure. def split_pdf(input_pdf, output_prefix, pages_per ...

PDF files are a mainstay in our multi-platform world. This convenient file format makes it possible to view and share documents across various devices, using various operating systems and software ...

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Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Eric's career includes extensive work in both public and corporate accounting with ...

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Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Jiwon Ma is a fact checker and research analyst with a background in cybersecurity, ...