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PDF 只需要改一个字，点击“文字”后却多出了一个新文字框，原句还在。要改掉文件中已有的字，首先要区分“新增文字”和“原文编辑”：前者是在页面上补内容，后者才是这次需要的入口。",[202,206,207,208,213],{},"图文工具箱的",[209,210,212],"a",{"href":211},"https:\u002F\u002Fimgtool.net\u002Fpdf-editor\u002F","PDF 编辑器","提供了“原文编辑”方式。下面用一份不含个人或业务信息的单页 PDF，把原有的“春风山水”改成“春海山水”，同时保留页面上的两行英文。这个例子既检查改字，也检查下载结果，避免只看到编辑框变了，就认为文件已经处理完。",[215,216,218],"h2",{"id":217},"pdf-修改原有文字先切到原文编辑","PDF 修改原有文字，先切到“原文编辑”",[202,220,221,222,226],{},"点击“添加文件”选择 PDF 后，文件会直接进入编辑器，不必再点“开始处理”。在左侧选择需要修改的页面，然后把顶部编辑方式从“叠加编辑”切换为 ",[223,224,225],"strong",{},"“原文编辑”","，等待当前页检查完成。",[202,228,229],{},"通过检查的文字会出现可选择的编辑框。本例还在右侧“当前页对象”中列出了“文字：春风山水”“文字：SOURCE ENGLISH”和“文字：KEEP NEIGHBOR”，方便对照目标内容。",[202,231,232,233,236],{},"单击文字只会选中段落框。要把光标放进去输入，可以双击框内文字，或选中后按 ",[223,234,235],{},"Enter","。如果已经看到边框，却始终打不进字，先确认是否进入了文字输入状态，不要急着再点顶部的“文字”按钮。",[202,238,239],{},"这里的“原文编辑”也不等于整份文档都可以像 Word 一样任意重排。能否修改某一段，要看当前文件和该段内容的检查结果。",[215,241,243],{"id":242},"改成新汉字时怎样选择字体","改成新汉字时，怎样选择字体？",[202,245,246,247,250],{},"PDF 中嵌入的字体可能只包含原文件用到的字。能显示“春风山水”，并不代表这份字体里也有“海”。遇到原字体缺字提示时，可以明确选择右侧提供的 ",[223,248,249],{},"“阿里巴巴普惠体”"," 再修改，而不是反复输入同一个字。",[202,252,253],{},"本例按下面的顺序操作：",[255,256,257,261,268,274],"ol",{},[258,259,260],"li",{},"选中“春风山水”并进入文字输入，选中整段文字。",[258,262,263,264,267],{},"在右侧“字体”中选择“阿里巴巴普惠体”，字号保持 ",[223,265,266],{},"20 pt","。",[258,269,270,271,267],{},"将文字替换为“春海山水”，等待右侧显示 ",[223,272,273],{},"“已应用”",[258,275,276],{},"核对页面文字和右侧对象名称都已更新，顶部状态显示“已修改原文 1 处”。",[202,278,282,283],{"className":279},[280,281],"flex","justify-center","\n  ",[284,285],"img",{"src":286,"alt":287},"\u002Fimage\u002F2026\u002Fpdf-editor-modify-original-text.webp","PDF原文编辑把春风山水改为春海山水，字体选阿里巴巴普惠体、字号20pt，右侧显示已修改原文1处和已应用",[202,289,290],{},"“已应用”表示这次修改已经写入当前编辑状态，仍需要导出才会得到新的 PDF 文件。若还显示“等待自动应用”或“正在验证 PDF 预览”，先等它完成；出现错误提示时，则应先处理错误。",[202,292,293],{},"换字体可能改变字形和字宽。正文较长时，要检查是否多出换行、与下方内容相碰，或超出原来的段落区域。看到“内容超出可用区域，尚未应用”时，可以缩短文字、调整段落框或减小字号；不要把仍未应用的输入当成最终结果。原字体已有所需字符、且希望保留原有外观时，可以先保留“原字体”，不必每次都换。",[215,295,297],{"id":296},"导出后确认旧字被替换其他内容仍在","导出后，确认旧字被替换，其他内容仍在",[202,299,300,301,305],{},"确认修改已应用后，点击“导出 PDF”，等浏览器实际下载完成。本例使用界面默认的“原生优先”导出，生成文件名为 ",[302,303,304],"code",{},"original-text-sample_edited.pdf","，源文件保持不变。",[202,307,308],{},"下载后重新打开成品，至少核对三处：",[310,311,312,315,326],"ul",{},[258,313,314],{},"搜索或复制目标文字，确认得到的是“春海山水”，不是原来的“春风山水”。",[258,316,317,318,321,322,325],{},"对照相邻内容，确认本例的 ",[302,319,320],{},"SOURCE ENGLISH"," 和 ",[302,323,324],{},"KEEP NEIGHBOR"," 仍然存在，没有被一起改动。",[258,327,328],{},"查看页面画面和页数，确认中文没有重影、缺字或被裁切，纸张方向和总页数也符合预期。",[202,330,331,332,335],{},"本次实际下载的文件仍为 ",[223,333,334],{},"1 页、595 × 842 pt 的 A4 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