Description
Reviewing a contract or a draft takes more than opening the PDF — you need to highlight, annotate and mark up. Okular is the reader that finishes the job — highlights, sticky notes, freehand marks and stamps, with annotations stored without altering the original file.
From KDE, open-source and free, on Windows, macOS and Linux, and it reads EPUB, DjVu, CHM and comics as well as PDF.
Full annotation toolkit: highlight, underline, sticky notes, freehand, lines and stamps cover the usual review actions, and annotations are saved separately by default so the source file stays intact.
More than PDF: PDF, EPUB, DjVu, CHM, Markdown, comic archives (CBZ/CBR) and images all open, so one reader covers most documents.
Comfortable reading: bookmarks, table-of-contents navigation, thumbnails, continuous and multi-column scrolling and an inverted night mode keep long sessions bearable.
Forms and signatures: fill in PDF forms and view and verify digital signatures.
Extraction and search: full-text search plus text and image extraction pull content out without another tool.
From KDE, open-source and free, on Windows, macOS and Linux, and it reads EPUB, DjVu, CHM and comics as well as PDF.
Features
Full annotation toolkit: highlight, underline, sticky notes, freehand, lines and stamps cover the usual review actions, and annotations are saved separately by default so the source file stays intact.
More than PDF: PDF, EPUB, DjVu, CHM, Markdown, comic archives (CBZ/CBR) and images all open, so one reader covers most documents.
Comfortable reading: bookmarks, table-of-contents navigation, thumbnails, continuous and multi-column scrolling and an inverted night mode keep long sessions bearable.
Forms and signatures: fill in PDF forms and view and verify digital signatures.
Extraction and search: full-text search plus text and image extraction pull content out without another tool.
