通过convertToImage()接口将PDF文件转为图片

Button("PDF转图片")
          .fontSize(12)
          .onClick(async () => {
            let uri = 'file://docs/storage/Users/currentUser' + '/outputImg'; //图片存储路径
            let fileUri: fileuri.FileUri = new fileuri.FileUri(uri);
            let path = fileUri.path;
            fs.mkdir(path);
            const result: boolean = this.document.convertToImage(path, 0); //将PDF文件转为图片
            if (result) {
              this.showDialog('PDF转图片成功', '存储路径为：用户目录/outputImg');
            } else {
              this.showDialog('PDF转图片失败', '');
            }
          }).margin({ left: 15 })