专注于学术论文的 PDF 阅读工具，可扩展。

• Quickly search your previously opened documents, table of contents, bookmarks, and highlights. Sioyek can even generate the table of contents if the document doesn't have one!
• You can preview or jump to references (e.g. bibliography, figures, equations, etc.) even when the document doesn't have links. You can also search references in google scholar with one click!
• Mark locations with one-character symbols and then quickly jump back to them. You can also create bookmarks which are like marks, but use a descriptive text instead of a symbol and can be searched.
• Sioyek can highlight text with different colors. They are searchable!
• You can extend sioyek using external commands and scripts. For example you can add OCR, translation, and text to speech to sioyek.