图片压缩
PNG压缩
JPG压缩
WEBP压缩
GIF压缩
指定压缩
证件照压缩
尺寸调整
格式转换
图片拼接
DPI调整
图片翻转
图片旋转
智能证件照
GIF裁剪
GIF合成
GIF倒放
GIF拆解
视频转GIF
清晰度增强
对比度增强
黑白图上色
人像动漫化
PDF压缩
PDF合并
PDF拆分
PDF转图片
图片转PDF
PDF加密
PDF页面旋转
适合给合同、资料、课件、报价单和共享文件添加用途说明或版权标记。
开通会员
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PDF加水印
功能优势
为 PDF 添加文字水印，适合标注用途和版权声明
场景匹配明确
适合给合同、资料、课件、报价单和共享文件添加用途说明或版权标记。
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参数设置清晰
可按页面选项设置水印文字、位置和显示效果。
结果可预览
处理完成后可查看加水印后的 PDF，确认效果后再下载。
在线完成
PDF 加水印由服务端工具处理，完成后生成新的 PDF。
使用指南
上传 PDF 后设置水印内容，预览并下载结果
0
上传 PDF
选择需要添加水印的 PDF 文件。
0
设置处理参数
可按页面选项设置水印文字、位置和显示效果。
0
下载加水印后的 PDF
页面生成加水印后的 PDF后，预览确认并保存到本地。
常见问题
整理使用前常见疑问，帮助你确认处理方式、输出效果和适用场景
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