The GroupDocs.Viewer Cloud enables you to rotate individual pages when viewing documents in HTML/PDF/JPG/PNG formats. To flip/rotate pages use the PageRotations property of ViewOptions class. There are three options that you can pass:
On90Degree - instructs to rotate page on 90-degree clockwise;
On180Degree - instructs to rotate page on 180-degree clockwise;
On270Degree - instructs to rotate page on 270-degree clockwise;
The following code snippet shows how to rotate output pages when viewing a document as PDF
API Usage
There are steps that usage of GroupDocs.Viewer Cloud consists of:
Upload input document into cloud storage
Render document or get document info
Download rendered document from storage
Steps 1 and 3 are storage operations, please refer to this File API documentation for usage details.
Swagger UI lets you call this REST API directly from the browser.
cURL example
# First get JSON Web Token# Please get your Client Id and Client Secret from https://dashboard.groupdocs.cloud/applications. Kindly place Client Id in "client_id" and Client Secret in "client_secret" argument.curl -v "https://api.groupdocs.cloud/connect/token"\
-X POST \
-d "grant_type=client_credentials&client_id=xxxx&client_secret=xxxx"\
-H "Content-Type: application/x-www-form-urlencoded"\
-H "Accept: application/json"# cURL example to get document informationcurl -v "https://api.groupdocs.cloud/v2.0/viewer/view"\
-X POST \
-H "Content-Type: application/json"\
-H "Accept: application/json"\
-H "Authorization: Bearer <jwt token>"-d "{
'FileInfo': {
'FilePath': 'SampleFiles/sample.docx'
},
'ViewFormat': 'PDF',
'RenderOptions': {
'PageRotations': [
{
'PageNumber': 1,
'RotationAngle': 'On90Degree'
}
]
}
}"
The API is completely independent of your operating system, database system or development language. We provide and support API SDKs in many development languages in order to make it even easier to integrate. You can see our available SDKs list here.
SDK Examples
// For complete examples and data files, please go to https://github.com/groupdocs-viewer-cloud/groupdocs-viewer-cloud-dotnet-samplesstringMyClientSecret="";// Get Client Id and Client Secret from https://dashboard.groupdocs.cloudstringMyClientId="";// Get Client Id and Client Secret from https://dashboard.groupdocs.cloudvarconfiguration=newConfiguration(MyClientId,MyClientSecret);varapiInstance=newViewApi(configuration);varviewOptions=newViewOptions{FileInfo=newFileInfo{FilePath="SampleFiles/sample.docx"},ViewFormat=ViewOptions.ViewFormatEnum.PDF,RenderOptions=newRenderOptions{PageRotations=newList<PageRotation>{newPageRotation{PageNumber=1,RotationAngle=PageRotation.RotationAngleEnum.On90Degree}}}};varresponse=apiInstance.CreateView(newCreateViewRequest(viewOptions));
// For complete examples and data files, please go to https://github.com/groupdocs-viewer-cloud/groupdocs-viewer-cloud-php-samples
useGroupDocs\Viewer\Model;useGroupDocs\Viewer\Model\Requests;$ClientId="";// Get Client Id and Client Secret from https://dashboard.groupdocs.cloud
$ClientSecret="";// Get Client Id and Client Secret from https://dashboard.groupdocs.cloud
$configuration=newGroupDocs\Viewer\Configuration();$configuration->setAppSid($ClientId);$configuration->setAppKey($ClientSecret);$apiInstance=newGroupDocs\Viewer\ViewApi($configuration);$viewOptions=newModel\ViewOptions();$fileInfo=newModel\FileInfo();$fileInfo->setFilePath("SampleFiles/sample.docx");$viewOptions->setFileInfo($fileInfo);$viewOptions->setViewFormat(Model\ViewOptions::VIEW_FORMAT_PDF);$renderOptions=newModel\PdfOptions();$pageRotation=newModel\PageRotation();$pageRotation->setPageNumber(1);$pageRotation->setRotationAngle(Model\PageRotation::ROTATION_ANGLE_ON90_DEGREE);$renderOptions->setPageRotations([$pageRotation]);$viewOptions->setRenderOptions($renderOptions);$request=newRequests\CreateViewRequest($viewOptions);$response=$apiInstance->createView($request);
// For complete examples and data files, please go to https://github.com/groupdocs-viewer-cloud/groupdocs-viewer-cloud-java-samples
stringMyClientSecret="";// Get Client Id and Client Secret from https://dashboard.groupdocs.cloud
stringMyClientId="";// Get Client Id and Client Secret from https://dashboard.groupdocs.cloud
Configurationconfiguration=newConfiguration(MyClientId,MyClientSecret);ViewApiapiInstance=newViewApi(configuration);FileInfofileInfo=newFileInfo();fileInfo.setFilePath("SampleFiles/sample.docx");ViewOptionsviewOptions=newViewOptions();viewOptions.setFileInfo(fileInfo);viewOptions.setViewFormat(ViewFormatEnum.PDF);RenderOptionsrenderOptions=newRenderOptions();PageRotationpageRotation=newPageRotation();pageRotation.setPageNumber(1);pageRotation.setRotationAngle(RotationAngleEnum.ON90DEGREE);renderOptions.addPageRotationsItem(pageRotation);viewOptions.setRenderOptions(renderOptions);ViewResultresponse=apiInstance.createView(newCreateViewRequest(viewOptions));
# For complete examples and data files, please go to https://github.com/groupdocs-viewer-cloud/groupdocs-viewer-cloud-ruby-samplesrequire'groupdocs_viewer_cloud'$client_id="XXXX-XXXX-XXXX-XXXX"# Get Client Id and Client Secret from https://dashboard.groupdocs.cloud$client_secret="XXXXXXXXXXXXXXXX"# Get Client Id and Client Secret from https://dashboard.groupdocs.cloudapiInstance=GroupDocsViewerCloud::ViewApi.from_keys($client_id,$client_secret)viewOptions=GroupDocsViewerCloud::ViewOptions.newviewOptions.file_info=GroupDocsViewerCloud::FileInfo.newviewOptions.file_info.file_path="SampleFiles/sample.docx"viewOptions.view_format="PDF"viewOptions.render_options=GroupDocsViewerCloud::PdfOptions.newpage_rotation=GroupDocsViewerCloud::PageRotation.newpage_rotation.page_number=1page_rotation.rotation_angle="On90Degree"viewOptions.render_options.page_rotations=[page_rotation]request=GroupDocsViewerCloud::CreateViewRequest.new(viewOptions)response=apiInstance.create_view(request)
// For complete examples and data files, please go to https://github.com/groupdocs-viewer-cloud/groupdocs-viewer-cloud-node-samples
global.viewer#require("groupdocs-viewer-cloud");global.clientId="XXXX-XXXX-XXXX-XXXX";// Get Client Id and Client Secret from https://dashboard.groupdocs.cloud
global.clientSecret="XXXXXXXXXXXXXXXX";// Get Client Id and Client Secret from https://dashboard.groupdocs.cloud
global.viewApi=viewer_cloud.ViewApi.fromKeys(clientId,clientSecret);letfileInfo=newviewer_cloud.FileInfo();fileInfo.filePath="SampleFiles/sample.docx";letviewOptions=newviewer_cloud.ViewOptions();viewOptions.fileInfo=fileInfo;viewOptions.viewFormat=viewer_cloud.ViewOptions.ViewFormatEnum.PDF;viewOptions.renderOptions=newviewer_cloud.PdfOptions();letpageRotation=newviewer_cloud.PageRotation();pageRotation.pageNumber=1;pageRotation.rotationAngle=viewer_cloud.PageRotation.RotationAngleEnum.On90Degree;viewOptions.renderOptions.pageRotations=[pageRotation];letrequest=newviewer_cloud.CreateViewRequest(viewOptions);letresponse=awaitviewApi.createView(request);
# For complete examples and data files, please go to https://github.com/groupdocs-viewer-cloud/groupdocs-viewer-cloud-python-samplesimportgroupdocs_viewer_cloudclient_id="XXXX-XXXX-XXXX-XXXX"# Get Client Id and Client Secret from https://dashboard.groupdocs.cloudclient_secret="XXXXXXXXXXXXXXXX"# Get Client Id and Client Secret from https://dashboard.groupdocs.cloudapiInstance=groupdocs_viewer_cloud.ViewApi.from_keys(client_id,client_secret)view_options=groupdocs_viewer_cloud.ViewOptions()view_options.file_info=groupdocs_viewer_cloud.FileInfo()view_options.file_info.file_path="SampleFiles/sample.docx"view_options.view_format="PDF"view_options.render_options=groupdocs_viewer_cloud.PdfOptions()page_rotation=groupdocs_viewer_cloud.PageRotation()page_rotation.page_number=1page_rotation.rotation_angle="On90Degree"view_options.render_options.page_rotations=[page_rotation]request=groupdocs_viewer_cloud.CreateViewRequest(view_options)response=apiInstance.create_view(request)
Was this page helpful?
Any additional feedback you'd like to share with us?
Please tell us how we can improve this page.
Thank you for your feedback!
We value your opinion. Your feedback will help us improve our documentation.