Spire.Cloud.PDF offer the pdfPathApi interface to draw shapes in a PDF document. This tutorial will showcase how to draw a line and a rectangle in a PDF document separately.

Draw a Line

import spire.cloud.pdf.sdk.ApiException;
import spire.cloud.pdf.sdk.Configuration;
import spire.cloud.pdf.sdk.api.PdfPathApi;

public class DrawLine {
    private static String appId = "App ID";
    private static String appKey = "App Key";
    private static String baseUrl = "https://api.cloudxdocs.com";

    public static void main(String[] args) throws ApiException {
        //Create a Configuration object based on your App ID and App Key
        Configuration configuration = new Configuration(appId, appKey, baseUrl);
        //Create a PdfPathApi instance
        PdfPathApi pdfPathApi = new PdfPathApi(configuration);

        //Load a pdf sample
        String name = "Sample.pdf";
        //Specify the password used to open the sample, and it's null if nothing
        String password = null;
        //Use the 2G storage provided by E-iceblue Cloud, and it’s null by default
        String storage = null;
        //Specify the folder storing the sample, and it’s null if nothing
        String folder = "input";
        //Specify the storage path of the resulting document
        String outPath = "output/DrawLine.pdf";
        //Specify the page where a line are drawn
        int pageNumber = 1;
        //Set the x and y coordinate
        float firstPointfX = 100;
        float firstPointfY = 250;
        //Set the length and inclination of the line
        float secondPointfX = 350;
        float secondPointfY = 270;

       //Call the drawLine method to draw a line in a PDF document
        pdfPathApi.drawLine(name, outPath, pageNumber, firstPointfX, firstPointfY, secondPointfX, secondPointfY, folder, storage, password);
    }
}

Output

Draw a Rectangle

import spire.cloud.pdf.sdk.ApiException;
import spire.cloud.pdf.sdk.Configuration;
import spire.cloud.pdf.sdk.api.PdfPathApi;
import spire.cloud.pdf.sdk.model.RectangleF;

public class DrawRectangle {
    private static String appId = "App ID";
    private static String appKey = "App Key";
    private static String baseUrl = "https://api.cloudxdocs.com";

    public static void main(String[] args) throws ApiException {
        //Create a Configuration object based on your App ID and App Key
        Configuration configuration = new Configuration(appId, appKey, baseUrl);
        //Create a pdfPathApi instance
        PdfPathApi pdfPathApi = new PdfPathApi(configuration);

        //Load a pdf sample
        String name = "Sample.pdf";
        //Specify the password used to open the sample, and it's null if nothing
        String password = null;
        //Use the 2G storage provided by E-iceblue Cloud, and it’s null by default
        String storage = null;
        //Specify the folder storing the sample, and it’s null if nothing
        String folder = "input";
        //Specify the storage path of the resulting document
        String outPath = "output/DrawRectangle.pdf";
        //Specify the page where a line are drawn
        int pageNumber = 1;

        //Set the x and y coordinate
        RectangleF rect = new RectangleF();
        rect.setX(100f);
        rect.setY(150f);
        //Set the size of the rectangle
        rect.setWidth(300f);
        rect.setHeight(60f);

        //Call the drawRectanglef method to draw a rectangle in a PDF document
        pdfPathApi.drawRectanglef(name, outPath, pageNumber, rect, folder, storage, password);
    }
}

Output