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Old 23-04-2018, 04:33 PM   #12
Smiling Spectre
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Originally Posted by Mystvan View Post
One thing I like about PDF is that depending on the scan, you can search for certain words. On the other hand, such *ahem* “exclusive” e-books (in Brazil) look like a flash file in which you cannot copy or search for words.
Um, you are not exactly understand how PDF works, Mystvan.

PDF is capable to has two different formats in one file (technically, it's even more, but these two are most prominent). One is picture layer, that is simple picture scan. It's most simple one, and easier to implement. There are many programs that can save pictures in PDF, and even some scanners that does so. Unfortunately, as there are mere pictures, there is still not possible to copy text or search anything - it's not exists in file!

Second layer is text. It must be generated manually or recognized from picture. Recognizing is far from perfect still, so requires a lot of manual works. It must be relied on only if you haven't other means to get it. But if you do that other way, it's automatical feature: converting prepared text into PDF file. This way most "original" PDF made, I believe.
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