Optimizing PDF files on Server/Desktop for fast viewing

1PDFDoc doc(filename);
2
3// Options for SaveViewerOptimized
4ViewerOptimizedOptions viewer_optimized_opts;
5
6// A number from 0 (include all thumbnails) to 100
7// (include only the first thumbnail). The default value is 50.
8viewer_optimized_opts.SetThumbnailRenderingThreshold(40);
9
10// The maximum allowed length for the thumbnail's height/width.
11// The default thumbnail size is 1024.
12viewer_optimized_opts.SetThumbnailSize(1024);
13
14// Optimize pdf
15doc.SaveViewerOptimized(output, viewer_optimized_opts);
16
17doc.Close();  // release resources

1doc := NewPDFDoc(filename)
2
3// Options for SaveViewerOptimized
4opts := NewViewerOptimizedOptions()
5
6// A number from 0 (include all thumbnails) to 100
7// (include only the first thumbnail). The default value is 50.
8opts.SetThumbnailRenderingThreshold(40)
9
10// The maximum allowed length for the thumbnail's height/width.
11// The default thumbnail size is 1024.
12opts.SetThumbnailSize(1024)
13
14// Optimize pdf
15doc.SaveViewerOptimized(outputPath + inputFileName + "_SaveViewerOptimized.pdf", opts)
16doc.Close()

1PDFDoc doc = new PDFDoc(filename);
2
3// Options for SaveViewerOptimized
4ViewerOptimizedOptions options = new ViewerOptimizedOptions();
5
6// A number from 0 (include all thumbnails) to 100
7// (include only the first thumbnail). The default value is 50.
8options.setThumbnailRenderingThreshold(0);
9
10// The maximum allowed length for the thumbnail's height/width.
11// The default thumbnail size is 1024.
12options.setThumbnailSize(1024);
13
14// Optimize pdf
15doc.saveViewerOptimized(output, options);

1const main = async () => {
2  const inputFilename = 'newsletter';
3  const inputFilePath = '../files/' + inputFilename + '.pdf';
4  const outputFilePath = '../output/' + inputFilename + '_optimized.pdf';
5  const doc = await PDFNet.PDFDoc.createFromFilePath(inputFilePath);
6
7  const opts = new PDFNet.PDFDoc.ViewerOptimizedOptions();
8
9  // A number from 0 (include all thumbnails) to 100
10  // (include only the first thumbnail). The default value is 50.
11  opts.setThumbnailRenderingThreshold(0);
12
13  // The maximum allowed length for the thumbnail's height/width.
14  // The default thumbnail size is 1024.
15  opts.setThumbnailSize(512);
16
17  // Optimize pdf
18  await doc.saveViewerOptimized(outputFilePath, opts);
19};
20
21// add your own license key as the second parameter, e.g. PDFNet.runWithCleanup(main, 'YOUR_LICENSE_KEY')
22PDFNet.runWithCleanup(main).then(function() {
23  PDFNet.shutdown();
24});

1PTPDFDoc *doc = [[PTPDFDoc alloc] initWithFilepath: filename];
2
3// Options for SaveViewerOptimized
4PTViewerOptimizedOptions *options = [[PTViewerOptimizedOptions alloc] init];
5
6// A number from 0 (include all thumbnails) to 100
7// (include only the first thumbnail). The default value is 50.
8[options SetThumbnailRenderingThreshold: 0];
9
10// The maximum allowed length for the thumbnail's height/width.
11// The default thumbnail size is 1024.
12[options SetThumbnailSize: 1500];
13
14// Optimize pdf
15[doc SaveViewerOptimized: output opts: options];

1$doc = new PDFDoc($filename);
2
3// Options for SaveViewerOptimized
4$options = new ViewerOptimizedOptions();
5
6// The maximum allowed length for the thumbnail's height/width.
7// The default thumbnail size is 1024.
8$options->SetThumbnailSize(1024);
9
10// A number from 0 (include all thumbnails) to 100
11// (include only the first thumbnail). The default value is 50.
12$options->SetThumbnailRenderingThreshold(40);
13
14// Optimize pdf
15$doc->SaveViewerOptimized($outputfile, $options);
16
17$doc->close();

1doc = PDFDoc(filename)
2
3# Options for SaveViewerOptimized
4options = ViewerOptimizedOptions()
5
6# The maximum allowed length for the thumbnail's height/width.
7# The default thumbnail size is 1024.
8options.SetThumbnailSize(1024)
9
10# A number from 0 (include all thumbnails) to 100
11# (include only the first thumbnail). The default value is 50.
12options.SetThumbnailRenderingThreshold(40)
13
14# Optimize pdf
15doc.SaveViewerOptimized(output, options)
16
17doc.Close()

1doc = PDFDoc.new(filename)
2
3# Options for SaveViewerOptimized
4options = ViewerOptimizedOptions.new()
5
6# The maximum allowed length for the thumbnail's height/width.
7# The default thumbnail size is 1024.
8options.SetThumbnailSize(1024)
9
10# A number from 0 (include all thumbnails) to 100
11# (include only the first thumbnail). The default value is 50.
12options.SetThumbnailRenderingThreshold(40)
13
14# Save the document as a viewer optimized PDF
15doc.SaveViewerOptimized("output-x.pdf", options)
16
17doc.Close()

1Using doc As PDFDoc = New PDFDoc(filename)
2
3  ' Options for SaveViewerOptimized
4  Dim opts As New ViewerOptimizedOptions
5
6  ' A number from 0 (include all thumbnails) to 100
7  ' (include only the first thumbnail). The default value is 50.
8  opts.SetThumbnailRenderingThreshold(0);
9
10  ' The maximum allowed length for the thumbnail's height/width.
11  ' The default thumbnail size is 1024.
12  opts.SetThumbnailSize(1500)
13
14  ' Optimize pdf
15  doc.SaveViewerOptimized(output, opts)
16End Using