static void Main()
{
//Initialise the MuPDF context. This is needed to open or create documents.
using MuPDFContext ctx = new MuPDFContext();
//Open a PDF document
using MuPDFDocument doc1 = new MuPDFDocument(ctx, "Document1.pdf");
//Save the page as a PNG image with transparency, at a 1x zoom level (1pt = 1px).
doc1.SaveImage(0, 1, PixelFormats.RGBA, "Raster1.png", RasterOutputFileTypes.PNG);
//Open an Open XPS document
using MuPDFDocument doc2 = new MuPDFDocument(ctx, "Document2.oxps");
//Save only part of the page as a PNG image with transparency, at a 2x zoom level (1pt = 2px).
doc2.SaveImage(0, new Rectangle(87, 360, 517, 790), 2, PixelFormats.RGBA, "Raster2.png", RasterOutputFileTypes.PNG);
//Merge the two documents into a single document.
MuPDFDocument.CreateDocument(ctx, "Merged.pdf", DocumentOutputFileTypes.PDF, true,
//We take the full page from the first document
(doc1.Pages[0], doc1.Pages[0].Bounds, 1),
//We only take a region of the page from the second document
(doc2.Pages[0], new Rectangle(87, 360, 517, 790), 1)
);
}
/// <summary>
/// Render the page to a PNG file.
/// </summary>
/// <param name="page">The <see cref="Page"/> to render.</param>
/// <param name="fileName">The full path to the file to save. If it exists, it will be overwritten.</param>
/// <param name="scale">The scale to be used when rasterising the page. This will determine the width and height of the image file.</param>
public static void SaveAsPNG(this Page page, string fileName, double scale = 1)
{
Document doc = new Document();
doc.Pages.Add(page);
MemoryStream ms = new MemoryStream();
doc.SaveAsPDF(ms);
using (MuPDFContext context = new MuPDFContext())
{
using (MuPDFDocument muDoc = new MuPDFDocument(context, ref ms, InputFileTypes.PDF))
{
muDoc.SaveImage(0, scale, MuPDFCore.PixelFormats.RGBA, fileName, RasterOutputFileTypes.PNG);
}
}
}
static void Main()
{
//Initialise the MuPDF context. This is needed to open or create documents.
using MuPDFContext ctx = new MuPDFContext();
//Open a PDF document
using MuPDFDocument doc1 = new MuPDFDocument(ctx, "Document1.pdf");
//Save the page as a PNG image with transparency, at a 1x zoom level (1pt = 1px).
doc1.SaveImage(0, 1, PixelFormats.RGBA, "Raster1.png", RasterOutputFileTypes.PNG);
//Open an Open XPS document
using MuPDFDocument doc2 = new MuPDFDocument(ctx, "Document2.oxps");
//Save only part of the page as a PNG image with transparency, at a 2x zoom level (1pt = 2px).
doc2.SaveImage(0, new Rectangle(87, 360, 517, 790), 2, PixelFormats.RGBA, "Raster2.png", RasterOutputFileTypes.PNG);
//Merge the two documents into a single document.
MuPDFDocument.CreateDocument(ctx, "Merged.pdf", DocumentOutputFileTypes.PDF, true,
//We take the full page from the first document
(doc1.Pages[0], doc1.Pages[0].Bounds, 1),
//We only take a region of the page from the second document
(doc2.Pages[0], new Rectangle(87, 360, 517, 790), 1)
);
//Open the rasterised page so that we can try using the OCR.
using MuPDFDocument doc3 = new MuPDFDocument(ctx, "Raster1.png");
//Get a structured text representation of the page using OCR.
MuPDFStructuredTextPage page = doc3.GetStructuredTextPage(0, new TesseractLanguage(TesseractLanguage.Fast.Eng));
//Print all the text lines.
foreach (MuPDFStructuredTextBlock blk in page)
{
foreach (MuPDFStructuredTextLine line in blk)
{
System.Console.WriteLine(line.Text);
}
}
}
