Thread: Virus on page?
View Single Post
  #111  
Old March 22nd 19, 01:28 PM posted to alt.comp.os.windows-10,alt.computer.workshop
Carlos E.R.[_3_]
external usenet poster
 
Posts: 1,356
Default Virus on page?

On 21/03/2019 20.05, Chris wrote:
Carlos E.R. wrote:
On 20/03/2019 19.56, Chris wrote:
Commander Kinsey wrote:
On Tue, 19 Mar 2019 11:23:13 -0000, Carlos E.R. wrote:

On 19/03/2019 00.16, Commander Kinsey wrote:.

You'd be hard pressed to develop anything worse than Adobe's Acrobat
Reader. Just try printing something from it, you won't get anything
remotely like what's on the screen. I often have to screengrab it and
print it from Paintshop Pro.

Huh? I never had any such problem printing from adobe reader reliably.

I have, I never get the size I expect. Easier to put it into a photo
editor with a screengrab, then you can fit to page etc.

Pdfs are vector formats and by definition can be scaled to any size without
losing resolution*. A pdf print dialogue box always has a "shrink to fit"
and/or "scale to page" option.

By taking a screenshot your rasterising the page and losing the benefit of
the pdf.

* Unless it had been saved as raster format. But that's dumb so not common
these days.


Wait, there are many scanners or scanner applications that save directly
as PDF. And in that case, they use bitmaps.


That's true. I was meaning pdfs you generally get online.


Well...

I'm in Electronics. Long time ago, we had to purchase electronic
component (like chips) catalogue books, printed in thin paper. Difficult
to find and expensive, at least in my part of the world.

Then came Internet.

Suddenly we had free access to those catalogs, in PDF form, made from
scanning the paper books, in relatively low resolution (some times
almost unreadable), raster format. Horrible things, difficult to scan
(visually) to search for something.

The PDFs were not generated from source, they were scanned material. It
took years till we got real electronic format catalogs, PDFs or html,
that we could run a text search to find what we needed.


Just mentioning online PDFs with bitmap content... :-D


--
Cheers, Carlos.
Ads