@ab78727
1) The Pocketbook Cloud, on the Pocketbook Eo, can be found by going to «Reader», then top left, clicking on the arrow, back, where you'll find the library, including «My books», then go to Cloud. To put books in the Cloud, simply select a book and send it to the Cloud, which is marked by a logo representing a cloud
2) To see the full Android settings window, which is hidden by default, go to «Reader», then click on TTS at the bottom, next «TTS system settings», then click on the «floating ball» on the right, next on the third ball from the top, «Process Manage», then «synthesis settings», the Android settings window finally becomes visible.
3) After the 2 firmware updates in mid-June, there's another one today, 19/07.
4) To set a password for the lock screen, go to Android settings, as explained above, then to «*secure*», and after on «*screen lock*»
4) Indeed, the stylus is not magnetized.
5) I listened the following video on YouTube ("Ghostscript - Convert PDF to black and white using
https://www.youtube.com/watch?v=JtEvCWJX5qw&t=56s
) which proposes the following script to transform a color PDF file into black and white using Ghostscript:
gs \
-sDEVICE=pdfwrite \
-sColorConversionStrategy=Gray \
-dProcessColorModel=/DeviceGray \
-dCompatibilityLevel=1.4 \
-dNOPAUSE \
-dBATCH \
-dPDFSETTINGS=/default \
-sOutputFile=output.pdf \
input.pdf
Since you seem to know how to use Ghostscript, could you or another kind soul explain to me, from A to Z, how to use it with Google Colab (
https://colab.research.google.com/ ), in order to create a notebook there, (without having to install Python on my computer), the goal being to obtain, as a result, a lightening of PDF files with dark backgrounds from Archive.org. ? What exact set of commands do I need to write in order for this script to run, for example, if my file is called dickens.pdf?