The short version
Scribd and Everand are the same company, and SlideShare is a different one with a different subject. That is the single most useful thing to know, because people reach for the wrong one constantly and then wonder why the document will not load.
| Scribd | Everand | SlideShare | |
|---|---|---|---|
| What it is for | User-uploaded documents: reports, theses, manuals, slide decks | Books and audiobooks, sold rather than uploaded | Presentations, almost exclusively |
| Who puts it there | Anyone, free | Publishers and authors, paid | Companies and individuals, free |
| What you get without an account | Most documents are readable in the browser | A short preview, if that | Most decks are viewable |
| Reading offline | Not offered by Scribd | An app, for books you have bought | Not offered |
| The file is really… | A picture of each page | Genuine text, in a real EPUB or PDF | A picture of each slide |
Why the last row decides almost everything
The single biggest difference between these three is not the price or the interface. It is whether the words exist underneath the page.
An Everand book is a real file. If you buy one, you have text you can search, copy, translate and read aloud, and the app reads it to you. That is what you are paying for.
A Scribd document is a set of pictures arranged in order, because that is how Scribd's viewer draws it. So a document saved from Scribd is a set of pictures of pages. Nothing can recover words that are not there, and that is why the file you get is not searchable — it is not a fault in the converter, it is what the source is.
SlideShare is the same story as Scribd, with fewer things to be confused about, because almost everything there is a deck.
Which one do you actually want?
If the document is a book. Look for it on Everand first. If it is there, buying it is the only route that gives you text you can search, and it is cheaper than the time you would spend working around not having it.
If it is a report, thesis, manual or lecture note. Scribd is where those are. Saving one as a PDF gives you a copy to read and print, and that is genuinely useful — it just is not searchable, and pretending otherwise is how people end up disappointed.
If it is a deck. SlideShare if you want the original presentation, Scribd if somebody has uploaded it there. Note that a deck saved from Scribd is a PDF of slides, not an editable PowerPoint, and a slide with an animated build is a single frame.
What none of them will give you
Documents behind a paywall, on a subscription, or marked download-restricted are not available to any converter, on any of the three. That is not a limitation of the software; it is the correct answer, and any tool that claims otherwise is either lying or about to ask for payment.
The rule is simple and it is worth stating plainly: if the page shows the document to a visitor who is not signed in, it can be saved. If it does not, it cannot.
And if you would rather not convert at all
For a document you need to read once, the browser is fine and nothing needs downloading. Conversion earns its place when you want the file to keep: for offline reading, for a device that cannot run Scribd, for printing a long document without the page breaking oddly, or for filing something you will want again next year. Downloaded copies are held for 24 hours, and your history tells you when one is gone rather than leaving a link that no longer works.