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 0.8.0
- UI in fourteen languages: Ukrainian, Romanian, Portuguese (European), Greek, Spanish
(European), Polish, Dutch, Czech and Swedish join English, Italian, German, French and
Hungarian (View ▸ Language, sorted alphabetically by native name). The live switch covers
everything as before: menus with per-language mnemonics, toolbar labels and tooltips,
dialogs, status bar, window title and the Explorer context-menu verbs. The English column
is now consistently British English. - Bookmark matching across fourteen languages: "Sync Points from Bookmarks" recognizes
verbal numbering prefixes in all of them ("Розділ 3" = "Capitolul 3" = "Κεφάλαιο 3" =
"Rozdział 3" = "Hoofdstuk 3" = "Kapitola 3" = "Avsnitt 3" = "Chapter 3"), and unnumbered
front/back-matter sections pair with their translation ("Зміст" = "Cuprins" = "Índice" =
"Περιεχόμενα" = "Spis treści" = "Inhoudsopgave" = "Obsah" = "Innehåll" = "Contents");
false friends stay apart (Portuguese/Spanish "Índice" is a table of contents,
English/German "Index" is not). Cyrillic and Greek titles tokenize correctly, including
Greek ALL-CAPS headings. - Installer: a per-user, winget-ready Inno Setup installer joins the portable zip: no
admin prompt, optional Explorer context-menu integration, localized setup wizard, and a
per-verb uninstall that never breaks a portable or dev copy owning the same shell verbs. - Sync robustness: the gaps-off waiting position now survives whole-pixel scroll
quantization on every DPI (the follower's page counter could previously flip to the next
section's first page under some display metrics, e.g. RDP at 96 DPI).
Download
PdfSideViewer-Setup-x64.exe installs per-user (no admin prompt) with optional Explorer
integration; PdfSideViewer-x64.zip is the same build as a single portable executable
(nothing to install). Windows 10/11 x64. PDF rendering by MuPDF 1.28 (AGPLv3);
PdfSideViewer is GPLv3 and the corresponding source is this repository at tag v0.8.0.