public/pdfjs/web/images/toolbarButton-sidebarToggle.svg
<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
<path fill-rule="evenodd" d="M16 4V12.25C16 12.7804 15.7893 13.2891 15.4142 13.6642C15.0391 14.0393 14.5304 14.25 14 14.25H2C1.46957 14.25 0.960859 14.0393 0.585786 13.6642C0.210714 13.2891 0 12.7804 0 12.25V4C0 3.46957 0.210714 2.96086 0.585786 2.58579C0.960859 2.21071 1.46957 2 2 2H14C14.5304 2 15.0391 2.21071 15.4142 2.58579C15.7893 2.96086 16 3.46957 16 4ZM1.25 3.85V12.4L1.85 13H6.75V3.25H1.85L1.25 3.85ZM14.15 13H8V3.25H14.15L14.75 3.85V12.4L14.15 13ZM5.35355 10.1464C5.44732 10.2402 5.5 10.3674 5.5 10.5C5.5 10.6326 5.44732 10.7598 5.35355 10.8536C5.25979 10.9473 5.13261 11 5 11H3C2.86739 11 2.74021 10.9473 2.64645 10.8536C2.55268 10.7598 2.5 10.6326 2.5 10.5C2.5 10.3674 2.55268 10.2402 2.64645 10.1464C2.74021 10.0527 2.86739 10 3 10H5C5.13261 10 5.25979 10.0527 5.35355 10.1464ZM5.5 8C5.5 7.86739 5.44732 7.74021 5.35355 7.64645C5.25979 7.55268 5.13261 7.5 5 7.5H3C2.86739 7.5 2.74021 7.55268 2.64645 7.64645C2.55268 7.74021 2.5 7.86739 2.5 8C2.5 8.13261 2.55268 8.25979 2.64645 8.35355C2.74021 8.44732 2.86739 8.5 3 8.5H5C5.13261 8.5 5.25979 8.44732 5.35355 8.35355C5.44732 8.25979 5.5 8.13261 5.5 8ZM5.35355 5.14645C5.44732 5.24021 5.5 5.36739 5.5 5.5C5.5 5.63261 5.44732 5.75979 5.35355 5.85355C5.25979 5.94732 5.13261 6 5 6H3C2.86739 6 2.74021 5.94732 2.64645 5.85355C2.55268 5.75979 2.5 5.63261 2.5 5.5C2.5 5.36739 2.55268 5.24021 2.64645 5.14645C2.74021 5.05268 2.86739 5 3 5H5C5.13261 5 5.25979 5.05268 5.35355 5.14645Z" fill="black"/>
</svg>