pdfjs新版添加水印
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zyn
@@ -10457,6 +10457,8 @@ class PDFPageView {
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});
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div.append(this.textLayer.div);
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}
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if (!this.annotationLayer && this.#annotationMode !== _pdfjsLib.AnnotationMode.DISABLE) {
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const {
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annotationStorage,
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@@ -10607,6 +10609,117 @@ class PDFPageView {
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source: this,
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pageNumber: this.id
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});
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div.style.overflow = 'hidden'
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//添加水印
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var cover = document.createElement('div');
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cover.className = "cover";
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var userInfo;
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if (localStorage.getItem('userInfo')) {
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userInfo = JSON.parse(localStorage.getItem('userInfo'));
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}
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var coverUserName = "";
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// var coverWorkNum = "";
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var msg = ""
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if(userInfo != null){
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coverUserName = userInfo.uName;
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// if (userInfo.workNum != null) {
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// coverWorkNum = userInfo.workNum + ',';
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// }
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msg = coverUserName;
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}
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var defaultSettings = {
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// watermark_txt: '测试水印',
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watermark_txt: msg,
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watermark_x: 50,//水印起始位置x轴坐标
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watermark_y: 60,//水印起始位置Y轴坐标
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watermark_rows: 0,//水印行数
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watermark_cols: 0,//水印列数
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watermark_x_space: 40,//水印x轴间隔
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watermark_y_space: 50,//水印y轴间隔
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watermark_color: 'rgba(232,232,240)',//水印字体颜色
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watermark_alpha: 0.4,//水印透明度
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watermark_fontsize: '40px',//水印字体大小
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watermark_font: '微软雅黑',//水印字体
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watermark_width: 120,//水印宽度
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watermark_height: 80,//水印长度
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watermark_angle: 40//水印倾斜度数
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};
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var screenHeight = window.screen.height;
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var screenWidth = window.screen.width;
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if((screenHeight>screenWidth) && (screenWidth>480 && screenWidth <= 1440)){
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defaultSettings.watermark_fontsize = '20px';
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defaultSettings.watermark_width = 60;
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defaultSettings.watermark_height = 40;
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}
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var oTemp = document.createDocumentFragment();
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// //获取页面最大宽度
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// var page_width = Math.max(document.body.scrollWidth, document.body.clientWidth);
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// //获取页面最大长度
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// var page_height = Math.max(document.body.scrollHeight, document.body.clientHeight);
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// var page_width = parseInt(canvasWrapper.style.width) //获取pdf页面宽度
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// var page_height = parseInt(canvasWrapper.style.height)+defaultSettings.watermark_y //获取pdf页面长度
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var page_width = canvas.width //获取pdf页面宽度
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var page_height = canvas.height //获取pdf页面长度
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//如果将水印列数设置为0，或水印列数设置过大，超过页面最大宽度，则重新计算水印列数和水印x轴间隔
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if (defaultSettings.watermark_cols == 0 || (parseInt(defaultSettings.watermark_x + defaultSettings.watermark_width * defaultSettings.watermark_cols + defaultSettings.watermark_x_space * (defaultSettings.watermark_cols - 1)) > page_width)) {
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defaultSettings.watermark_cols = parseInt((page_width - defaultSettings.watermark_x + defaultSettings.watermark_x_space) / (defaultSettings.watermark_width + defaultSettings.watermark_x_space));
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defaultSettings.watermark_x_space = parseInt((page_width - defaultSettings.watermark_x - defaultSettings.watermark_width * defaultSettings.watermark_cols) / (defaultSettings.watermark_cols - 1));
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}
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//如果将水印行数设置为0，或水印行数设置过大，超过页面最大长度，则重新计算水印行数和水印y轴间隔
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//这一段可以注释，因为可能会每页只加一半水印
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if (defaultSettings.watermark_rows == 0 || (parseInt(defaultSettings.watermark_y + defaultSettings.watermark_height * defaultSettings.watermark_rows + defaultSettings.watermark_y_space * (defaultSettings.watermark_rows - 1)) > page_height)) {
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defaultSettings.watermark_rows = parseInt((defaultSettings.watermark_y_space + page_height - defaultSettings.watermark_y) / (defaultSettings.watermark_height + defaultSettings.watermark_y_space));
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defaultSettings.watermark_y_space = parseInt(((page_height - defaultSettings.watermark_y) - defaultSettings.watermark_height * defaultSettings.watermark_rows) / (defaultSettings.watermark_rows - 1));
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}
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var x;
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var y;
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for (var i = 0; i < defaultSettings.watermark_rows; i++) {
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y = defaultSettings.watermark_y + (defaultSettings.watermark_y_space + defaultSettings.watermark_height) * i;
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for (var j = 0; j < defaultSettings.watermark_cols; j++) {
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x = defaultSettings.watermark_x + (defaultSettings.watermark_width + defaultSettings.watermark_x_space) * j;
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var mask_div = document.createElement('div');
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mask_div.id = 'mask_div' + i + j;
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mask_div.className = 'mask_div';
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mask_div.appendChild(document.createTextNode(defaultSettings.watermark_txt));
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//设置水印div倾斜显示
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mask_div.style.webkitTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
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mask_div.style.MozTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
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mask_div.style.msTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
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mask_div.style.OTransform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
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mask_div.style.transform = "rotate(-" + defaultSettings.watermark_angle + "deg)";
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mask_div.style.visibility = "";
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mask_div.style.position = "absolute";
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mask_div.style.whiteSpace = "nowrap";
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//奇偶行错开，这样水印就不对齐，显的不呆板
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if (i % 2 != 0) {
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// mask_div.style.left = x + 20 + 'px';
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mask_div.style.left = x - 20 + 'px';
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} else {
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mask_div.style.left = x + 'px';
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}
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mask_div.style.top = y + 'px';
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mask_div.style.overflow = "hidden";
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mask_div.style.opacity = defaultSettings.watermark_alpha;
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mask_div.style.fontSize = defaultSettings.watermark_fontsize;
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mask_div.style.fontFamily = defaultSettings.watermark_font;
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mask_div.style.color = defaultSettings.watermark_color;
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mask_div.style.textAlign = "center";
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// mask_div.style.width = canvas.style.width + 'px';
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// mask_div.style.height = canvas.style.height + 'px';
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mask_div.style.display = "block";
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oTemp.appendChild(mask_div);
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}
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}
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cover.appendChild(oTemp);
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canvasWrapper.appendChild(cover)
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return resultPromise;
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}
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setPageLabel(label) {
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@@ -13570,7 +13683,7 @@ function getXfaHtmlForPrinting(printContainer, pdfDocument) {
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/************************************************************************/
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/******/ // The module cache
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/******/ var __webpack_module_cache__ = {};
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/******/
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/******/
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/******/ // The require function
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/******/ function __webpack_require__(moduleId) {
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/******/ // Check if module is in cache
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@@ -13584,14 +13697,14 @@ function getXfaHtmlForPrinting(printContainer, pdfDocument) {
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/******/ // no module.loaded needed
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/******/ exports: {}
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/******/ };
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/******/
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/******/
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/******/ // Execute the module function
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/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__);
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/******/
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/******/
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/******/ // Return the exports of the module
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/******/ return module.exports;
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/******/ }
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/******/
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/******/
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/************************************************************************/
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var __webpack_exports__ = {};
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// This entry need to be wrapped in an IIFE because it need to be isolated against other modules in the chunk.
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@@ -13775,4 +13888,4 @@ if (document.readyState === "interactive" || document.readyState === "complete")
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/******/ })()
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;
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//# sourceMappingURL=viewer.js.map
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//# sourceMappingURL=viewer.js.map
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