I heard that we can view pdf files in emacs. Is it done by converting pdf files to plain texts first?
Can we view pdf files at its fullness in emacs?
can we edit pdf files in emacs?
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Since Emacs 23, you can view PDF files as images just by opening them like normal files as long as you have Emacs running in X rather than a terminal. You can also see and edit the PDF directly, which will display the contents of the binary file as text (with lots of unprintable characters!). You can edit this text directly, but unless you can encode and decode PDFs in your head, it won't be very useful.
You can switch between the two views with
The same file both as an image preview and as text. I should learn to label my axes ;).
Text mode isn't very useful for PDFs, but it also works on some human-readable formats like
.svg, which is useful for editing those files in place.