I have a bot. Firsttime i foward pdf file to my

bot. Again same pdf file foward it to my bot after bot identify it already foward pdf file.

How to identify it? Fileid using identify or any method for it?

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Calculate a checksum

Solution-X Автор вопроса
Quad
Calculate a checksum

What is a checksum?

Solution-X Автор вопроса

Anyone know idea to do it 🤔

Solution X
Anyone know idea to do it 🤔

checksum is a good solution though

Solution-X Автор вопроса

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