You can't use Atril to edit files.
Phil Bull
philbull@gmail.com

Creative Commons Share Alike 3.0

Vincent Renardias
vincent@ldsol.com 1998-2000.
Joaquim Fellmann
joaquim@hrnet.fr 2000.
Christophe Merlet
redfox@redfoxcenter.org 2000-2006.
Christophe Fergeau
teuf@users.sourceforge.net 2002-2003.
Sun G11n
gnome_int_l10n@ireland.sun.com 2002.
Robert-André Mauchin
zebob.m@pengzone.org 2006-2008.
Stéphane Raimbault
stephane.raimbault@gmail.com 2007.
Yannick Tailliez
ytdispatch-libre@yahoo.com 2008.
Claude Paroz
claude@2xlibre.net 2008-2010.
Gérard Baylard
gerard dot b at bbox dot fr 2010

# Can I edit documents in the document viewer?

Atril can't be used to make changes to documents. You need to use the appropriate editing application for the type of file you want to change.

PDF and PostScript (.ps) files are not usually intended to be edited, but PDF editing software is available. Try LibreOffice Draw or Okular, for example. Furthermore, pdfarranger allows rearranging or removing pages and merging files.