The header 25 50 44 46 corresponds to which file type?

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Multiple Choice

The header 25 50 44 46 corresponds to which file type?

Explanation:
File signatures, or magic numbers, identify file types by placing a specific byte sequence at the very start of the file. The header 25 50 44 46 in hexadecimal corresponds to ASCII characters %PDF, which is the standard signature for PDF documents. You’ll often see a version after that signature, like %PDF-1.4, indicating the PDF version. Other common formats use different signatures (for example, PNG starts with 89 50 4E 47, and ZIP starts with 50 4B 03 04), so they do not match this header. Therefore, this header uniquely identifies a PDF file.

File signatures, or magic numbers, identify file types by placing a specific byte sequence at the very start of the file. The header 25 50 44 46 in hexadecimal corresponds to ASCII characters %PDF, which is the standard signature for PDF documents. You’ll often see a version after that signature, like %PDF-1.4, indicating the PDF version. Other common formats use different signatures (for example, PNG starts with 89 50 4E 47, and ZIP starts with 50 4B 03 04), so they do not match this header. Therefore, this header uniquely identifies a PDF file.

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