Generate a PDF page thumbnail on Server/Desktop

1PDFDoc doc(filename);
2PDFDraw draw;
3
4// set the output resolution 
5draw.SetDPI(92);
6
7// Rasterize the first page in the document and save the result as PNG.
8Page pg = doc.GetPage(1);
9draw.Export(pg, output_filename, "PNG");

1// use the empty constructor to create a blank PDF
2doc := NewPDFDoc(filename)
3
4// set the output resolution 
5draw.SetDPI(92)
6
7// Rasterize the first page in the document and save the result as PNG.
8pg := doc.GetPage(1)
9draw.Export(pg, output_filename, "PNG")

1PDFDoc doc = new PDFDoc(filename);
2PDFDraw draw = new PDFDraw();
3
4// set the output resolution 
5draw.setDPI(92);
6
7// Rasterize the first page in the document and save the result as PNG.
8Page pg = doc.getPage(1);
9draw.export(pg, output_filename, "PNG");

1async function main() {
2  const doc = await PDFNet.PDFDoc.createFromURL(filename);
3
4  // set the output resolution
5  const pdfdraw = await PDFNet.PDFDraw.create(92);
6
7  // Rasterize the first page in the document and save the result as PNG.
8  const pg = await doc.getPage(1);
9  const buf = await pdfdraw.exportStream(pg, 'PNG');
10
11  //optionally save the blob to a file or upload to a server
12  const blob = new Blob([buf], { type: 'application/pdf' });
13}
14PDFNet.runWithCleanup(main);

1PTPDFDoc *doc = [[PTPDFDoc alloc] initWithFilepath: filename];
2
3// set the output resolution
4PTPDFDraw *draw = [[PTPDFDraw alloc] initWithDpi: 92];
5
6// Rasterize the first page in the document and save the result as PNG.
7PTPage* pg = [doc GetPage: 1];
8[draw Export:pg filename: output_filename format: @"PNG"];

1$doc = new PDFDoc($filename);
2$draw = new PDFDraw();
3
4// The output resolution is set to 92 DPI.
5$draw->SetDPI(92);
6
7// Rasterize the first page in the document and save the result as PNG.
8$pg = $doc->GetPage(1);
9$draw->Export($pg, $output_filename, "PNG");

1doc = PDFDoc(filename)
2draw = PDFDraw()
3
4# The output resolution is set to 92 DPI.
5draw.SetDPI(92)
6
7# Rasterize the first page in the document and save the result as PNG.
8pg = doc.GetPage(1)
9draw.Export(pg, output_filename, "PNG")

1doc = PDFDoc.new(filename)
2draw = PDFDraw.new
3
4# The output resolution is set to 92 DPI.
5draw.SetDPI(92)
6
7# Rasterize the first page in the document and save the result as PNG.
8pg = doc.GetPage(1)
9draw.Export(pg, output_filename, "PNG")

1Dim doc4 As PDFDoc = New PDFDoc(filename)
2Dim draw As PDFDraw = New PDFDraw
3
4' The output resolution is set to 92 DPI.
5draw.SetDPI(92)
6
7' Rasterize the first page in the document and save the result as PNG.
8Dim pg As Page = doc.GetPage(1)
9draw.Export(pg, output_filename, "PNG")