PDF-XChange Viewer，免费强大的PDF阅读器、PDF编辑器！软件基础功能免费，适合日常使用，轻巧快速、打开PDF文件速度快。它具有OCR功能，支持导出文件，提取文本和图像、图片格式；支持在PDF文档上任意位置加上注解、中文注释、输入文字、建立文字区域、箭头、框线，批量搜索等功能。
更新历史
https://www.tracker-software.com/product/pdf-xchange-editor/history
v8.0.339.0 release - 07-05-2020
Fixed an issue with content disappearing after some time after content modification.
Fixed an issue with decoding 2- and 4-bpp JPX-images.
Fixed an issue with copying links/bookmarks with GoTo actions.
Fixed an issue with registering Shell Extension during product updates under certain circumstances.
Fixed an issue with disappearing content on some panes in a document's view (gray screen problem).
Fixed a rare issue related to moving pane-splitters inside the document view (sometimes user might have been unable to reduce the width/height of side panels).
Fixed an issue with Drag-And-Dropping panes around the Pages View when split/spreadsheet mode was enabled - it was almost impossible to drop any pane around the spreadsheet.
Fixed a minor issue with drawing the PanZoom-view when no document is opened (small visual artefacts might be present).
Fixed an issue with the R-Click menu for selected comments (there was a conflict with "Select Images/Text" for Hand tool).
Fixed an issue with the correct state of the Delete command inside the Comments pane when it had selected a locked comment(s).
Fixed an issue with updating the Spellcheck-dictionaries.
Fixed a bug in the Editor shell extensions which could crash Windows Explorer in some rare cases.
软件特点
OCR功能，支持自定义图像或被扫描的PDF文件，制作全文可搜索文本的PDF；
支持为任何的PDF文档添加批注和注释，无需获得Adobe的PDF工具的认证；
支持添加自定义的图像或者PDF文档；支持从PDF页面和文档中提取文本；
支持用文本和对象标识所需的页面；内置测量工具，支持周长和面积的计算；
在打印机模式下，支持直接在PDF页面上输入，无需Adobe的格式要求；
支持导出PDF页面或整个文件到任何所支持的图像格式，例如BMP, JPEG, TIFF, PNG等格式；
支持PDF安全设置，包括40/128位RC4和128/256位AES加密的密码和权限的添加和编辑；
注意：该软件需安装.NETframework 框架才能运行，安装过程除了OCR等其它增强功能收费外，用户安装可选免费版，软件含中文语言，安装后如果默认语言设置不合适，可在编辑→参数设置中进行修改。
高速下载地址
由漫步白月光整理便携化制作，已经中文化，如果你打开还是英文
切换中文方法：打开软件ctrl+k调出设置界面，然后选languages设置即可
