Resolution of this page.
public double Resolution {get; set;}
public:
property double Resolution
{
double get()
void set(double value)
}
Resolution # get and set (DocumentPage)
The resolution of this DocumentPage, in dots per inch (DPI). The default value is 0.
If this DocumentPage corresponds to an original page in the document, then the resolution of the page is determined from the original document when LEADDocument is loaded. If this page was added to the document by the user, then the size is the value passed to DocumentPages.CreatePage.
OriginalPageNumber is the page number of this DocumentPage in the original document. It is -1 if this page was added by the user.
For more information, refer to Loading Using LEADTOOLS Document Library.
Some document types do not have a physical resolution. If the document type does not have a physical resolution, DocumentPages.DefaultResolution is used for all the initial values of the pages.
Size and Resolution will always contain values, and are populated for all pages of the document upon initialization. The LEADTOOLS Document Viewer relies on initialization to create empty items for each page in the image viewer control. Each item will have the correct size, but no image data. The Document Viewer will then load the raster image or SVG objects for the page in a background thread.
When the user sets a new raster image using SetImage, the Size and Resolution values of the page are updated from the RasterImage object. If the value passed is null, then the Size and Resolution will be updated using DocumentPages.DefaultPageSize and DocumentPages.DefaultResolution.
using Leadtools;
using Leadtools.Caching;
using Leadtools.Document;
public void DocumentExample()
{
var cache = GetCache();
var policy = new CacheItemPolicy();
policy.AbsoluteExpiration = DateTime.Now + new TimeSpan(0, 0, 1);
policy.SlidingExpiration = new TimeSpan(0, 0, 1);
var options = new LoadDocumentOptions();
options.CachePolicy = policy;
options.Cache = cache;
if(options.Cache == null)
{
options.Cache = DocumentFactory.Cache;
}
string documentId = null;
using (var document = DocumentFactory.LoadFromFile(Path.Combine(LEAD_VARS.ImagesDir, "Leadtools.pdf"), options))
{
document.GetDocumentFileName();
document.IsReadOnly = false;
document.AutoDeleteFromCache = false;
// DocumentImages reference
document.Images.DefaultBitsPerPixel = 24;
Console.WriteLine(document.Images.IsResolutionsSupported);
Console.WriteLine(document.Images.IsSvgSupported);
// Check if the document has a stream in memory
if (document.HasStream)
{
// Get the document stream
document.GetDocumentStream();
}
// Indicate whether the document is using the cache or not
Console.WriteLine(document.HasCache);
//Indicate if the document was downloaded
Console.WriteLine(document.IsDownloaded);
// Gets a value that determines whether the document structure is supported
Console.WriteLine(document.IsStructureSupported);
// Output metadata values (DocumentMetadata reference)
Console.WriteLine(document.Metadata.Values.Count);
// Get the Mime type of the document
Console.WriteLine(document.MimeType);
// Parse document structure data (DocumentStructure reference)
foreach(DocumentBookmark bookmark in document.Structure.Bookmarks)
{
bookmark.Title = null;
bookmark.FontStyles = DocumentFontStyles.Normal;
document.Structure.Bookmarks.Add(bookmark);
Console.WriteLine(bookmark.Children);
Console.WriteLine(bookmark.Target);
Console.WriteLine(document.Structure.Bookmarks.Count);
Console.WriteLine(document.Structure.IsParsed);
Console.WriteLine(document.Structure.ParseBookmarks);
}
document.Structure.Parse();
// Get the document URI
Console.WriteLine(document.Uri);
// Get each DocumentPage object (DocumentPage & DocumentPages reference)
foreach (DocumentPage page in document.Pages)
{
// Get the page as a raster image at the specified resolution
page.GetImage(0);
// Get the page as an Svg with specified options
page.GetSvg(null);
// Flip this page horizontally
page.Reverse();
// Use this method to add an array of links for this page
page.SetLinks(null);
page.IsLinksModified = false;
page.Resolution = 0;
page.ViewPerspective = RasterViewPerspective.TopLeft;
page.SetLinks(page.GetLinks());
Console.WriteLine($"Page Number: {page.PageNumber}, Original PageNumber: {page.OriginalPageNumber}, Size of the page: {page.Size}");
}
PrintOutDocumentInfo(document);
documentId = document.DocumentId;
document.SaveToCache();
}
System.Threading.Thread.Sleep(2000);
var loadFromCacheOptions = new LoadFromCacheOptions();
loadFromCacheOptions.Cache = cache;
loadFromCacheOptions.DocumentId = documentId;
using (var document = DocumentFactory.LoadFromCache(loadFromCacheOptions))
{
if (null == document)
{
Console.WriteLine("Cached document was expired and deleted!");
}
}
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images";
}
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Calendar;
import org.junit.*;
import org.junit.runner.JUnitCore;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;
import static org.junit.Assert.*;
import leadtools.*;
import leadtools.caching.*;
import leadtools.document.*;
public void documentExample() throws InterruptedException, IOException {
final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images";
FileCache cache = getCache();
CacheItemPolicy policy = new CacheItemPolicy();
Calendar nowPlus = Calendar.getInstance();
nowPlus.add(Calendar.SECOND, 1);
policy.setAbsoluteExpiration(nowPlus.getTime());
policy.setSlidingExpiration(1);
LoadDocumentOptions options = new LoadDocumentOptions();
options.setCachePolicy(policy);
options.setCache(cache);
if (options.getCache() == null) {
options.setCache(DocumentFactory.getCache());
}
LEADDocument document = DocumentFactory.loadFromFile(combine(LEAD_VARS_IMAGES_DIR, "Leadtools.pdf"), options);
document.getDocumentFileName();
document.setReadOnly(false);
document.setAutoDeleteFromCache(false);
// DocumentImages reference
document.getImages().setDefaultBitsPerPixel(24);
System.out.println(document.getImages().isResolutionsSupported());
System.out.println(document.getImages().isSvgSupported());
// Check if the document has a stream in memory
if (document.hasStream()) {
// Get the document stream
document.getDocumentStream();
}
// Indicate whether the document is using the cache or not
System.out.println(document.hasCache());
// Indicate if the document was downloaded
System.out.println(document.isDownloaded());
// Gets a value that determines whether the document structure is supported
System.out.println(document.isStructureSupported());
// Output metadata values (DocumentMetadata reference)
System.out.println(document.getMetadata().values().size());
// Get the Mime type of the document
System.out.println(document.getMimeType());
// Parse document structure data (DocumentStructure reference)
for (DocumentBookmark bookmark : document.getStructure().getBookmarks()) {
bookmark.setTitle(null);
bookmark.setFontStyles(DocumentFontStyles.NORMAL);
document.getStructure().getBookmarks().add(bookmark);
System.out.println(bookmark.getChildren());
System.out.println(bookmark.getTarget());
System.out.println(document.getStructure().getBookmarks().size());
System.out.println(document.getStructure().isParsed());
System.out.println(document.getStructure().getParseBookmarks());
}
document.getStructure().parse();
// Get the document URI
System.out.println(document.getUri());
// Get each DocumentPage object (DocumentPage & DocumentPages reference)
document.setCacheOptions(document.getCacheOptions());
for (DocumentPage page : document.getPages()) {
assertTrue(document != null);
System.out.println("Document created successfully");
// Get the page as a raster image at the specified resolution
page.getImage(0);
// Get the page as an Svg with specified options
page.getSvg(null);
// Flip this page horizontally
page.reverse();
// Use this method to add an array of links for this page
page.setLinks(null);
page.setLinkedModified(false);
page.setResolution(0);
page.setViewPerspective(RasterViewPerspective.TOP_LEFT);
page.setLinks(page.getLinks());
System.out.println("Page Number: " + page.getPageNumber() + ", Original PageNumber: "
+ page.getOriginalPageNumber() + ", Size of the page: " + page.getSize() + "");
}
printOutDocumentInfo(document);
document.saveToCache();
document.dispose();
}
Help Collections
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Imaging, Medical, and Document
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