[Slackbuilds-users] Copying PDF-1.7 text using -14.2

[Richard Ellis]

On Mon, Sep 14, 2020 at 09:57:13AM -0700, Rich Shepard wrote:
>On Mon, 14 Sep 2020, Alexander Verbovetsky wrote:
>>Maybe there is no text inside, just picture?  PDF is a container, not 
>>a format.
>
>Scientific journal articles are primarily text with occasional plots 
>or other images.  And I believe that PDF stand for "Portable Document 
>Format."

The Adobe name does expand to those words, but the word "Document" in 
the name bears no resemblence to how the data inside the PDF document 
produces a visual output.

The internal structure of a PDF is basicacally best described as 
"electronic paper" than as a "document".  PDF, internally, is simply a 
way of specifying how to physically position "visual things" on a 
virtual sheet of paper, and whether you have any luck with extracting 
"text" later depends very much upon how the creating software generated 
the internal PDF data.