rotate Method (original) (raw)
Summary
Rotates the specified pages.
Syntax
Parameters
angle
Rotation angle in degrees. Positive values will rotate the pages clockwise and negative values will rotate the pages counter-clockwise. Must be an increment of 90 degrees.
firstPageNumber
1-based first page number in the document. This value must be greater than or equal to 1.
lastPageNumber
1-based last page number in the document. This value must be greater or equal to firstPageNumber. A value of -1 means the last page in the document.
Example
Rotate.ts
DocumentHelper.ts
Rotate.js
DocumentHelper.js
Rotate.html
import { DocumentHelper } from "../../utilities/DocumentHelper";
export class LEADDocument_RotateExample {
public constructor() {
lt.RasterSupport.setLicenseUri("https://demo.leadtools.com/licenses/js/LEADTOOLSEVAL.txt", "EVAL", null);
DocumentHelper.initFactory();
}
public run = (buttonID: string) => {
const exampleButton = document.getElementById(buttonID);
exampleButton.onclick = this.rotatePage;
}
rotatePage = () => {
const url = "https://demo.leadtools.com/images/pdf/leadtools.pdf";;
const loadDocumentOptions = new lt.Document.LoadDocumentOptions();
DocumentHelper.log("Loading document...");
lt.Document.DocumentFactory.loadFromUri(url, loadDocumentOptions)
.done((doc) => {
DocumentHelper.log("Loaded, converting...");
// LEADDocument is read-only by default, so:
doc.isReadOnly = false;
// Rotate the first page by 90
let docPage = doc.pages.item(0);
docPage.rotate(90);
// Flip the second page vertically
docPage = doc.pages.item(1);
docPage.flip();
// Save it to the cache
lt.Document.DocumentFactory.saveToCache(doc)
.done(() => {
// Convert it to PDF
const jobData = new lt.Document.DocumentConverterJobData();
jobData.documentFormat = lt.Document.Writer.DocumentFormat.pdf;
jobData.rasterImageFormat = lt.Document.RasterImageFormat.unknown;
// Set document options
const docxOptions = new lt.Document.Writer.DocxDocumentOptions();
docxOptions.textMode = lt.Document.Writer.DocumentTextMode.auto;
jobData.documentOptions = docxOptions;
doc.convert(jobData)
.done((result) => {
// This is generic code, we know the result is in "document" since DOCX supports that
// But this code checks if the results have been archived into a ZIP file if this
// example was converting to, say SVG
const resultDocument = result.document != null ? result.document.url : result.archive.url;
const link = document.createElement("a");
const url = lt.Document.DocumentFactory.serviceUri + "/" + resultDocument;
link.href = url;
link.innerHTML = url;
link.target = "_default";
DocumentHelper.log("Converted: " + url, url);
})
.fail(DocumentHelper.showServiceError);
})
.fail(DocumentHelper.showServiceError);
})
.fail(DocumentHelper.showServiceError);
}
}
export class DocumentHelper {
static showServiceError = (jqXHR, statusText, errorThrown) => {
alert("Error returned from service. See the console for details.");
const serviceError = lt.Document.ServiceError.parseError(jqXHR, statusText, errorThrown);
console.error(serviceError);
}
static log = (message: string, data?: any) => {
const outputElement = document.getElementById("output");
if (outputElement) {
const time = (new Date()).toLocaleTimeString();
const textElement = document.createElement("p");
textElement.innerHTML = (outputElement.childElementCount + 1) + " [" + time + "]: " + message;
outputElement.insertBefore(textElement, outputElement.firstChild);
}
if (!data)
console.log(message);
else
console.log(message, data);
}
static initFactory = () => {
// To communicate with the DocumentsService, it must be running!
// Change these parameters to match the path to the service.
lt.Document.DocumentFactory.serviceHost = "http://localhost:40000";
lt.Document.DocumentFactory.servicePath = "";
lt.Document.DocumentFactory.serviceApiPath = "api";
}
}
import { DocumentHelper } from "../../utilities/DocumentHelper";
export class LEADDocument_RotateExample {
constructor() {
lt.RasterSupport.setLicenseUri("https://demo.leadtools.com/licenses/js/LEADTOOLSEVAL.txt", "EVAL", null);
DocumentHelper.initFactory();
}
run = (buttonID) => {
const exampleButton = document.getElementById(buttonID);
exampleButton.onclick = this.rotatePage;
}
rotatePage = () => {
const url = "https://demo.leadtools.com/images/pdf/leadtools.pdf";;
const loadDocumentOptions = new lt.Document.LoadDocumentOptions();
DocumentHelper.log("Loading document...");
lt.Document.DocumentFactory.loadFromUri(url, loadDocumentOptions)
.done((doc) => {
DocumentHelper.log("Loaded, converting...");
// LEADDocument is read-only by default, so:
doc.isReadOnly = false;
// Rotate the first page by 90
let docPage = doc.pages.item(0);
docPage.rotate(90);
// Flip the second page vertically
docPage = doc.pages.item(1);
docPage.flip();
// Save it to the cache
lt.Document.DocumentFactory.saveToCache(doc)
.done(() => {
// Convert it to PDF
const jobData = new lt.Document.DocumentConverterJobData();
jobData.documentFormat = lt.Document.Writer.DocumentFormat.pdf;
jobData.rasterImageFormat = lt.Document.RasterImageFormat.unknown;
// Set document options
const docxOptions = new lt.Document.Writer.DocxDocumentOptions();
docxOptions.textMode = lt.Document.Writer.DocumentTextMode.auto;
jobData.documentOptions = docxOptions;
doc.convert(jobData)
.done((result) => {
// This is generic code, we know the result is in "document" since DOCX supports that
// But this code checks if the results have been archived into a ZIP file if this
// example was converting to, say SVG
const resultDocument = result.document != null ? result.document.url : result.archive.url;
const link = document.createElement("a");
const url = lt.Document.DocumentFactory.serviceUri + "/" + resultDocument;
link.href = url;
link.innerHTML = url;
link.target = "_default";
DocumentHelper.log("Converted: " + url, url);
})
.fail(DocumentHelper.showServiceError);
})
.fail(DocumentHelper.showServiceError);
})
.fail(DocumentHelper.showServiceError);
}
}
export class DocumentHelper {
static showServiceError = (jqXHR, statusText, errorThrown) => {
alert("Error returned from service. See the console for details.");
const serviceError = lt.Document.ServiceError.parseError(jqXHR, statusText, errorThrown);
console.error(serviceError);
}
static log = (message, data) => {
const outputElement = document.getElementById("output");
if (outputElement) {
const time = (new Date()).toLocaleTimeString();
const textElement = document.createElement("p");
textElement.innerHTML = (outputElement.childElementCount + 1) + " [" + time + "]: " + message;
outputElement.insertBefore(textElement, outputElement.firstChild);
}
if (!data)
console.log(message);
else
console.log(message, data);
}
static initFactory = () => {
// To communicate with the DocumentsService, it must be running!
// Change these parameters to match the path to the service.
lt.Document.DocumentFactory.serviceHost = "http://localhost:40000";
lt.Document.DocumentFactory.servicePath = "";
lt.Document.DocumentFactory.serviceApiPath = "api";
}
}
<!doctype html>
<html lang="en">
<title>Document Example | Rotate</title>
<head>
<script src="https://code.jquery.com/jquery-2.2.4.min.js"
integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script>
<script src="../../LT/Leadtools.js"></script>
<script src="../../LT/Leadtools.Controls.js"></script>
<script src="../../LT/Leadtools.Annotations.Engine.js"></script>
<script src="../../LT/Leadtools.Annotations.Designers.js"></script>
<script src="../../LT/Leadtools.Annotations.Rendering.Javascript.js"></script>
<script src="../../LT/Leadtools.Annotations.Automation.js"></script>
<script src="../../LT/Leadtools.ImageProcessing.Main.js"></script>
<script src="../../LT/Leadtools.ImageProcessing.Color.js"></script>
<script src="../../LT/Leadtools.ImageProcessing.Core.js"></script>
<script src="../../LT/Leadtools.ImageProcessing.Effects.js"></script>
<script src="../../LT/Leadtools.Document.js"></script>
<script src="../../LT/Leadtools.Document.Viewer.js"></script>
<link rel="stylesheet" type="text/css" href="../../css/examples.css">
<!-- All demo files are bundled and appended to the window -->
<script src="../../bundle.js" type="text/javascript"></script>
</head>
<body>
<div>
<button type="button" id="exampleButton">Run Example</button>
</div>
<div id="output"></div>
<div>
<img id="img" />
</div>
</body>
<script>
window.onload = () => {
const example = new window.examples.LEADDocument.Rotate();
example.run("exampleButton");
};
</script>
</html>