PdfSideViewer 0.6.0
PdfSideViewer shows two PDF documents side by side with synchronized scrolling that
survives different page formats and zoom levels: positions are exchanged in page units around
a user-adjustable anchor. Pure Win32 + Direct2D, a single portable executable.
New in 0.6.0
- Rendered alignment gaps (WinMerge-style, Sync ▸ Show Alignment Gaps, on by default):
where one document has extra pages the other shows dashed placeholder slots the size of the
missing page, so both panes scroll (and page-flip) together 1:1 through the whole documents.
Toggled off, the 0.5 behavior returns (the shorter side waits at the end of its section). - Anchor marks and scrollbar ticks: sync-point pages are flagged with an anchor next to
the page and tick marks along the pane's right edge (solid = manual, faded = generated);
hovering an anchor shows the bookmark numberings behind it. Both can be turned off in the
Options dialog. - Sync points persist: each left+right pair remembers its points in
settings.ini;
reopening the same two documents restores the manual points and re-derives the generated
ones from the fresh bookmarks. Points also survive Swap Panes (F8), mirrored. - Smarter bookmark matching: numberings now match at any depth ("2.2.1"), letter
components pair too ("Appendice A", "A.1"), and unnumbered bookmarks with identical titles
("Sommario", "Indice analitico") become sync points as well. - Toolbar covers the whole Sync menu, and the bar's right-click menu gains Internet
Explorer's text options: "Show text labels" (the new default, below the icons), "Selective
text on right" or "No text labels". Default layout is now menu and labeled toolbar on two
locked rows. - Full screen: a new 4-corner-arrows icon, a floating exit button in the top-right corner,
and Options checkboxes to keep the full toolbar and/or the status bar visible. - With zoom sync active the zoom presets (100%, fit width, fit page) drive both panes;
Ctrl+4 / Ctrl+5 now select continuous / page-by-page scrolling distinctly. - The sync-points dialog is a proper report list with column headers, refreshed live if an
auto-reload changes the map while it is open.
Download
PdfSideViewer-x64.zip contains a single portable executable for Windows 10/11 x64 (nothing
to install) plus the README and license. PDF rendering by MuPDF 1.28 (AGPLv3); PdfSideViewer
is GPLv3 and the corresponding source is this repository at tag v0.6.0.