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PDF，不要把唯一原件直接替换掉。",[128,222,223],{"id":223},"哪些情况需要换一种处理方式",[115,225,226],{},"这个工具也能添加 JPG、JPEG 或 PNG 图片水印，并提供左上、左下、上中、下中、居中、右上、右下和平铺位置。不过，当前界面会把同一组设置应用到所有页面，不能单独跳过封面，也不能让不同页面使用不同文字。需要按页设置、批量处理多个 PDF 或精细控制图层时，更适合使用专业 PDF 编辑软件。",[115,228,229],{},"加水印只是增加可见标记，不等于加密、访问权限控制、电子签章或版权证明。加密 PDF 无法读取时，页面会提示改用桌面版处理；从压缩包中直接选择文件也可能无法读取，应先解压到普通文件夹。工具的 PDF 读取和水印写入在浏览器中完成，但页面仍需联网加载所需脚本与字体资源。",{"title":231,"searchDepth":232,"depth":232,"links":233},"",2,[234,235,236,237],{"id":130,"depth":232,"text":130},{"id":179,"depth":232,"text":180},{"id":199,"depth":232,"text":199},{"id":223,"depth":232,"text":223},"pdf-watermark","PDF需要加“内部评审稿”等满屏文字水印时，怎样设置平铺位置、透明度、水平与垂直间距和倾斜角度？本文给出一组可调整的起点，并说明预览与下载后的检查方法。","md",{},true,"2026-09-20",{"title":6,"description":239},"blog\u002Fadd-repeating-text-watermark-to-pdf","0idahXApysSLsqoaq4XndosTCdWrNi6OQrqSOK5Ie_k",{"previous":248,"next":250},{"path":11,"title":12,"published":249},"2026-09-19",null,1789911185880]