Sumatra PDF 中文版由大眼仔旭发布。轻量级 PDF 阅读工具 Sumatra PDF 中文版是由 Krzysztof Kowalczyk 所开发的轻量级 PDF 阅读器，支持 Windows 操作系统。它非常小巧，快速，资源占用很少，可以在电脑上快速打开 PDF 文件并查看，对于不需要高级功能而只是希望在电脑上快速阅读 PDF 文件的用户来说非常有用。

轻量级 PDF 阅读工具 Sumatra PDF 中文版

什么是 Sumatra PDF？

Sumatra PDF 是适用于 Windows 的免费 PDF、电子书（ePub、Mobi）、XPS、DjVu、CHM、漫画书（CBZ 和 CBR）阅读器。Sumatra PDF 功能强大、体积小、便于携带且启动速度非常快。用户界面的简单性具有很高的优先级。

Sumatra PDF 由下列两个函数库组成：MuPDF – PDF 函数库，Poppler – PDF 函数库。

Sumatra PDF 的设计风格极简单。软件的安装档案体积小，只有大约1MB，比起 Adobe Reader 的安装档案小很多，启动快。最新版本（3.0）拥有 63 种语言界面，其携带版又分两个可执行档SumatraPDF-no-MuPDF.exe（1.7M）及 SumatraPDF.exe（4.24M）。在 PortableApps 网站上，也有提供可携带版的 Sumatra PDF，让使用者可以将它存在 USB 优盘、iPod、可移动硬盘、CD上，方便使用。

Sumatra PDF 是一个应用程序，可让您查看 PDF 文件，而无需任何第三方组件。

用户友好、全面、便携的软件
由于这是一个便携式工具，因此无需安装。您的 Windows 注册表项将保持不变，您还可以将 Sumatra PDF Portable 放在可移动设备上，并在旅途中随身携带。

该程序的用户界面简单明了，虽然默认的背景颜色（黄色）可能会有点碍眼。您可以使用文件浏览器或“拖放”方法打开文档。 Sumatra PDF Portable 可以处理 PDF、XPS、DjVu 或 CHM 格式的文件（包括漫画书）。

借助这个有用的工具预览 PDF 文件并分析其所有方面
因此，您可以可视化文档属性（例如创建日期、PDF 制作者和版本、页面大小），以及在单页、正面、书籍视图、“连续显示页面”、演示和全屏之间切换查看模式。此外，您还可以更改方向（左右）、转到特定页面、搜索文本和缩放（例如适合页面、实际大小、适合宽度、适合内容、自定义）。

此外，您可以创建收藏夹列表、更改界面语言、禁用程序以自动检查更新或记住打开的文件，以及更改默认布局和缩放。

一流的 PDF 查看器，也可作为便携式应用程序使用
Sumatra PDF Portable 使用少量系统资源，可以引导您访问在线用户文档，并且在我们的测试期间不会死机或崩溃。总而言之，此应用程序非常适合查看 PDF 文档，我们强烈推荐给所有用户。

Sumatra PDF 许可证

免费软件

官方主页

What’s new in SumatraPDF Portable 3.7.1
add cmd-line tools SumatraPDF <tool> <args>. Tools: draw, convert, audit, bake, clean, create, extract, info, merge, pages, poster, recolor, show, trim, grep, trace
add CmdPdShowInfo (Show PDF Info in Ctrl + k command palette)
add CmdDocumentShowOutline (Show Document Outline in Ctrl + k command palette)
improved overlay scrollbar
make thumbnails on home page scrollable
add ability to register / unregister Windows preview handler and search filter from Ctrl + k command palette. Use “Register Windows Preview”, Un-register Windows Preview”, “Register Windows Search Filter”, “Un-register Windows Search Filter”.
add CmdToggleEscToExit (Toggle Esc to Exit in Ctrl + k command palette) to toggle EscToExit advanced setting
add CmdToggleTips (Toggle Tips in Ctrl + k command palette) to toggle ShowTips advanced setting
add CmdSetTabColor (Set Tab Color) to set a custom color for a document’s tab, available from tab right-click context menu
add CmdPdfCompress (Compress PDF in Ctrl + k command palette) to compress a PDF file
add CmdPdfDecompress (Decompress PDF in Ctrl + k command palette) to decompress a PDF file
add CmdPdfDeletePages (Delete Pages From PDF in Ctrl + k command palette) to delete pages from a PDF file
add CmdPdfExtractPages (Extract Pages From PDF in Ctrl + k command palette) to extract pages from a PDF file
add CmdPdfEncrypt (Encrypt PDF in Ctrl + k command palette) to encrypt a PDF file with a password using AES-256
add CmdPdfDecrypt (Decrypt PDF in Ctrl + k command palette) to decrypt an encrypted PDF file, removing password protection
add CmdDocumentExtractText (Extract Text From Document in Ctrl + k command palette) to extract text from document pages to a .txt file
add ToolbarText parameter for ExternalViewers advanced setting to show external viewer as a toolbar button
move Scrollbars advanced setting from FixedPageUI to top-level
add EBookUI.BackgroundColor advanced setting to override background color for ebook documents (epub, mobi etc.)
add ComicBookUI.BackgroundColor advanced setting to override the default black background for comic book files
add ImageUI.BackgroundColor advanced setting to override the default black background for image files
background color settings (FixedPageUI.BackgroundColor, EBookUI.BackgroundColor, ComicBookUI.BackgroundColor, ImageUI.BackgroundColor) accept checkered value to show a checkerboard transparency pattern
add CmdChangeBackgroundColor (Change Background Color in Ctrl + k command palette) to change document background color per-file or for all files of the same type
Ctrl + click on a PDF link opens it in a new tab (instead of navigating in the current tab)
you can now drag&drop selected text to another application, like a text editor
added List Printers (CmdListPrinters) command to Ctrl + k Command Palette to list available printers
add -log-to-file <file> cmd-line flag to log to a specific file (like -log but with custom log file path)
move DefaultImageZoom advanced setting to ImageUI.DefaultZoom, default to shrink to fit
improve Toggle Use Tabs (CmdToggleUseTabs). You can now transition between using tabs / not using tabs witout restarting the app
allow showing menu bar when using tabs (previously menu bar was only shown when not using tabs)
add CmdScreenshot (Take Screenshot in Ctrl + k command palette) to capture screenshots of the desktop and all visible windows, saved as PNG files in Screenshots sub-directory of SumatraPDF data directory. Global hotkey (e.g. PrtSc) requires a Shortcuts entry.
you can drag&drop images from a browser onto SumatraPDF window. We’ll download it to Downloads folder and open
add CmdCropImage (Crop Image) command for cropping images when viewing image files
add CmdResizeImage (Resize Image) command for resizing images when viewing image files
Ctrl + V pastes image from clipboard, saves as PNG in Downloads folder and opens it
Can save images in different formats: PNG, JPEG, BMP, GIF, TIFF.
add CmdPdfBake (Bake PDF File in Ctrl + k command palette) to bake interactive form and annotation content into static graphics in a new PDF file
add Fullscreen advanced setting with ShowToolbar and ShowMenubar options to show toolbar and menu bar in fullscreen mode. Use F9 / F8 to toggle them while in fullscreen
add CmdSetScreenshotHotkey (Set Screenshot Hotkey in Ctrl + k command palette) to set or remove a global hotkey for taking screenshots
add Show Errors in right-click context menu for PDF documents that have mupdf warnings/errors
add CmdToggleSmoothScroll (Toggle Smooth Scroll) command to toggle SmoothScroll advanced setting
replace HideScrollbars and UseOverlayScrollbar settings with Scrollbars setting (values: windows, smart, overlay, hidden)
add CmdTabGroupSave (Save Tab Group) and CmdTabGroupRestore (Restore Tab Group) commands to save and restore groups of tabs. Saved groups are persisted in TabGroups advanced setting
add CmdChangeScrollbar (Change Scrollbar) command to open scrollbar mode dialog
add CmdZoomShrinkToFit (Shrink To Fit) zoom mode: shows at 100% if page is smaller than view area, otherwise fits page
add CmdToggleScrollbarInSinglePage (Toggle Scrollbar In Single Page) command to toggle ScrollbarInSinglePage advanced setting
add TabsMru advanced setting and CmdToggleTabsMru (Toggle Tabs MRU) command to toggle it. It changes order of navigating tabs when usint Ctrl + Tab (CmdNextTabSmart)
improve document properties for comic book files (CBZ, CBR, CB7, CBT). We now show list of image files.
improve document properties for image files: size, dimensions, DPI, exif metadata
support encrypted .cbz, .cbr files

https://www.sumatrapdfreader.org/docs/Version-history

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