Comprehensive guides and fundamentals about PDF files, formats, and structures.
What actually happens when a PDF is processed inside your browser: the libraries involved, each step, the limits of this approach, and how to verify your file is never uploaded.
Read article →What OCR is, how to tell whether a scanned PDF needs it, what improves accuracy for Arabic and mixed-language documents, and what to check by hand afterwards.
Read article →When to send a PDF and when to send a Word file: a practical comparison of editing, layout, protection and printing, with CV, contract and form examples.
Read article →What a PDF file is and what's inside it: embedded fonts, images and the text layer, why it looks the same on every device, and when it isn't the right format.
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