<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.com/nexus/content/groups/public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.pdf</artifactId>
        <version>12.4.4</version>
    </dependency>
</dependencies>

import com.spire.pdf.PdfDocument;
import com.spire.pdf.PdfPageBase;
import com.spire.pdf.PdfPageSize;
import com.spire.pdf.graphics.*;

import java.awt.geom.Point2D;

public class ChangePageSizeToStandardPaperSize {
    public static void main(String []args){
        //Load the original PDF document
        PdfDocument originPdf = new PdfDocument();
        originPdf.loadFromFile("Sample.pdf");

        //Create a new PDF document
        PdfDocument newPdf = new PdfDocument();

        //Loop through the pages in the original PDF
        for(int i = 0; i< originPdf.getPages().getCount(); i++)
        {
            //Add pages of size A1 to the new PDF
            PdfPageBase newPage = newPdf.getPages().add(PdfPageSize.A1, new PdfMargins((0)));
            //Create a PdfTextLayout instance
            PdfTextLayout layout = new PdfTextLayout();
            //Set text layout as one page (if not set the content will not scale to fit page size)
            layout.setLayout(PdfLayoutType.One_Page);
            //Create templates based on the pages in the original PDF
            PdfTemplate template = originPdf.getPages().get(i).createTemplate();
            //Draw templates onto the pages in the new PDF
            template.draw(newPage, new Point2D.Float(0,0), layout);
        }

        //Save the result document
        newPdf.saveToFile("ChangePageSizeToA1.pdf");
    }
}

import com.spire.pdf.PdfDocument;
import com.spire.pdf.PdfPageBase;
import com.spire.pdf.graphics.*;

import java.awt.*;
import java.awt.geom.Dimension2D;
import java.awt.geom.Point2D;

public class ChangePageSizeToCustomPaperSize {
    public static void main(String []args){
        //Load the original PDF document
        PdfDocument originPdf = new PdfDocument();
        originPdf.loadFromFile("Sample.pdf");

        //Create a new PDF document
        PdfDocument newPdf = new PdfDocument();

        //Create a PdfUnitConvertor instance
        PdfUnitConvertor unitCvtr = new PdfUnitConvertor();
        //Convert the custom size in inches to points
        float width = unitCvtr.convertUnits(6.5f, PdfGraphicsUnit.Inch, PdfGraphicsUnit.Point);
        float height = unitCvtr.convertUnits(8.5f, PdfGraphicsUnit.Inch, PdfGraphicsUnit.Point);

        //Create a Dimension2D instance from the custom size, then it will be used as the page size of the new PDF
        Dimension2D size = new Dimension();
        size.setSize(width, height);

        //Loop through the pages in the original PDF
        for(int i = 0; i< originPdf.getPages().getCount(); i++)
        {
            //Add pages of the custom size (6.5*8.5 inches) to the new PDF
            PdfPageBase newPage = newPdf.getPages().add(size, new PdfMargins((0)));
            //Create a PdfTextLayout instance
            PdfTextLayout layout = new PdfTextLayout();
            //Set text layout as one page (if not set the content will not scale to fit page size)
            layout.setLayout(PdfLayoutType.One_Page);
            //Create templates based on the pages in the original PDF
            PdfTemplate template = originPdf.getPages().get(i).createTemplate();
            //Draw templates onto the pages in the new PDF
            template.draw(newPage, new Point2D.Float(0,0), layout);
        }

        //Save the result document
        newPdf.saveToFile("ChangePageSizeToCustomSize.pdf");
    }
}

<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.com/nexus/content/groups/public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.pdf</artifactId>
        <version>12.4.4</version>
    </dependency>
</dependencies>

import com.spire.pdf.PdfDocument;
import com.spire.pdf.PdfPageBase;
import com.spire.pdf.graphics.PdfRGBColor;
import com.spire.pdf.graphics.PdfSolidBrush;
import com.spire.pdf.graphics.PdfTrueTypeFont;

import java.awt.*;

       public class pdfBrush {
            public static void main(String[] args) throws Exception {


                //Create a PdfDocument object
                PdfDocument doc = new PdfDocument();
                //Add a page
                PdfPageBase page = doc.getPages().add();

                //Set the location
                float y = 30;

                //Create solid brush object and define the color
                PdfRGBColor rgb1 = new PdfRGBColor(Color.green);
                PdfSolidBrush brush1 = new PdfSolidBrush(rgb1);

                //RGB Color
                PdfRGBColor rgb2 = new PdfRGBColor(0,197,205);
                PdfSolidBrush brush2 = new PdfSolidBrush(rgb2);

                //HTML code color
                Color color = Color.decode("#A52A2A");
                PdfSolidBrush brush3 = new PdfSolidBrush(new PdfRGBColor(color));

                //Create true type font object
                Font font = new Font("Arial", java.awt.Font.BOLD, 14);
                PdfTrueTypeFont trueTypeFont = new PdfTrueTypeFont(font);

                //Draw text
                page.getCanvas().drawString("Set the text color with brush", trueTypeFont, brush1, 0, (y = y + 30f));
                page.getCanvas().drawString("Set the text color with RGB", trueTypeFont, brush2, 0, (y = y + 50f));
                page.getCanvas().drawString("Set the text color with HTML code color", trueTypeFont, brush3, 0, (y = y + 60f));

                //Save to file
                doc.saveToFile("output/CreatePdf.pdf");

            }
        }

<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.com/nexus/content/groups/public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.pdf</artifactId>
        <version>12.4.4</version>
    </dependency>
</dependencies>

import com.spire.compression.TiffCompressionTypes;
import com.spire.pdf.PdfDocument;

public class PDFToTIFF {
    public static void main(String[] args) {

        //Create a PdfDocument instance
        PdfDocument pdf = new PdfDocument();
       
 //Load a PDF sample document
        pdf.loadFromFile("sample.pdf");

        //Save all pages of the document to Tiff
        pdf.saveToTiff("output/PDFtoTiff.tiff");
     }
}

import com.spire.pdf.PdfDocument;

public class PDFToTIFF {
    public static void main(String[] args) {
        //Create a PdfDocument instance
        PdfDocument pdf = new PdfDocument();
 
       //Load a PDF  sample document
        pdf.loadFromFile("sample.pdf");

        //Save specified pages of the document to TIFF and set horizontal and vertical resolution
        pdf.saveToTiff("output/ToTiff2.tiff",0,1,400,600);
    }
}

<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.com/nexus/content/groups/public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.pdf</artifactId>
        <version>12.4.4</version>
    </dependency>
</dependencies>

import com.spire.pdf.FileFormat;
import com.spire.pdf.PdfDocument;
import com.spire.pdf.PdfPageBase;
import com.spire.pdf.graphics.PdfImage;

public class ConvertTiffToPdf {
    public static void main(String[] args){
        //Create a PdfDocument instance
        PdfDocument doc = new PdfDocument();
        //Add a page
        PdfPageBase page = doc.getPages().add();
        
        //Create a PdfImage object from the TIFF image
        PdfImage tiff = PdfImage.fromFile("Input.tiff");
        //Draw the image to the page
        page.getCanvas().drawImage(tiff, 20, 0, 450, 450);
        
        //Save the result file
        doc.saveToFile("TiffToPdf.pdf", FileFormat.PDF);
    }
}