По запросу: "extension file format pdf extension" найдено 144 иконки.

file-o
https://www.svgrepo.com/show/474929/opened-folder.svg
Gala icon set image/svg+xml Gala icon set https://github.com/sisyphusion/gala-icons Jake Wells
dropbox
multiple-documents-files Created with Sketch Beta.
git_commit_fill
file-text-solid
book
cloud Created with Sketch Beta.
Clarity Icon This is shape (source) for Clarity vector icon theme for gtk Clarity Icon This is shape (source) for Clarity vector icon theme for gtk Jakub Jankiewicz Jakub Jankiewicz 2010 image/svg+xml
Folder Ubuntu Icon This is shape (source) for Clarity vector icon theme for gtk Folder Ubuntu Icon This is shape (source) for Clarity vector icon theme for gtk Jakub Jankiewicz Jakub Jankiewicz 2010 image/svg+xml
Clarity Icon This is shape (source) for Clarity vector icon theme for gtk Clarity Icon This is shape (source) for Clarity vector icon theme for gtk Jakub Jankiewicz Jakub Jankiewicz 2010 image/svg+xml