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Resize PDF docuemnt pages via Java SDK

API for resizing PDF document pages using Java.

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Aspose.PDF Cloud SDK for Java Aspose.PDF Cloud SDK for Java

Overview

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How to resize PDF docuemnt pages via Cloud Java SDK

To resize PDF documents, we’ll use Aspose.PDF Cloud Java SDK This Cloud SDK allows you to easily build cloud-based PDF creator, editor & converter apps in Java language for various cloud platforms. Open Repository package manager, search for Aspose.PDF Cloud and install. You may also use the following command from the Package Manager Console for install it using Maven.

Add Aspose Cloud repository to your application pom.xml

Add Aspose Cloud repository


    <repositories>
        <repository>
            <id>aspose-cloud</id>
            <name>Aspose Cloud Repository</name>
            <url>https://releases.aspose.cloud/java/repo/</url>
        </repository>
    </repositories>

To install the API client library to your local Maven repository, simply execute:

Installation from Github


    mvn clean install

To deploy it to a remote Maven repository instead, configure the settings of the repository and execute:

Deploy Maven repository


    mvn clean deploy

Steps to resize PDF using Java SDK

Aspose.PDF Cloud developers can easily load & resize PDF in just a few lines of code.

  1. Uploads the PDF.
  2. Converts it to HTML (retaining structure/content).
  3. Converts the HTML back to a new PDF with the specified dimensions.
  4. Downloads the resized document.
 

Resize PDF using Java Cloud SDK


    package com.aspose.asposecloudpdfusecases.change_layout;

    import java.io.File;
    import java.nio.file.Path;
    import java.nio.file.StandardCopyOption;
    import com.aspose.asposecloudpdf.api.PdfApi;
    import com.aspose.asposecloudpdf.model.AsposeResponse;
    import com.aspose.asposecloudpdf.model.HtmlDocumentType;
    import com.aspose.asposecloudpdf.model.OutputFormat;
    import com.aspose.asposecloudpdfusecases.annotations.AnnotationsHelper;

    public class ResizeDocumentPages {
        public static void Perform() {
            String REMOTE_FOLDER   = "Your_Temp_Pdf_Cloud";
            String LOCAL_FOLDER    = "c:\\Samples";
            String PDF_DOCUMENT    = "sample.pdf";
            String PDF_OUTPUT      = "reise_document_pages_output.pdf";

            String RRESIZE_PDF_HTML_FILE        = "sammple_temp_file.html";
            Double RESIZE_NEW_PAGE_WIDTH       = 1000.;
            Double RESIZE_NEW_PAGE_HEIGHT      = 500.;

            try {
                PdfApi pdfApi = new PdfApi(API_KEY, API_SECRET);
                
                // upload local PDF file to remote storage
                File file = new File(Path.of(LOCAL_FOLDER, PDF_DOCUMENT).toString());
                pdfApi.uploadFile(Path.of(REMOTE_FOLDER , PDF_DOCUMENT).toString(), file, null);
                System.out.println(String.format("File '%s' successfully uploaded!", Path.of(LOCAL_FOLDER, PDF_DOCUMENT).toString()));

                String htmlTempPath = Path.of(REMOTE_FOLDER, RRESIZE_PDF_HTML_FILE).toString();

                AsposeResponse tempResponse = pdfApi.putPdfInStorageToHtml(PDF_DOCUMENT,
                    htmlTempPath,
                    null, null, null, null,
                    HtmlDocumentType.XHTML.toString(),
                    null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null,
                    REMOTE_FOLDER,
                    null, null,
                    OutputFormat.FOLDER.toString());

                if (tempResponse.getCode() != 200)
                    System.err.println("Error: unexpected error when creating temp file! '" + tempResponse.getStatus() + "'");
                else {
                    AsposeResponse response = pdfApi.putHtmlInStorageToPdf( 
                        PDF_OUTPUT,
                        htmlTempPath,
                        RRESIZE_PDF_HTML_FILE,
                        RESIZE_NEW_PAGE_HEIGHT, 
                        RESIZE_NEW_PAGE_WIDTH,
                        null, null, null, null, null,
                        REMOTE_FOLDER,
                        null);

                    if (response.getCode() != 200)
                        System.err.println("Error: unexpected error when resize pages! '" + response.getStatus() + "'");
                    else {
                        // download changed PDF file from remote folder...
                        File f = pdfApi.downloadFile(Path.of(REMOTE_FOLDER , PDF_OUTPUT).toString(), null, null);
                        java.nio.file.Files.copy(Path.of(f.getPath()), Path.of(LOCAL_FOLDER, PDF_OUTPUT), StandardCopyOption.REPLACE_EXISTING);
                        System.out.println(String.format("File '%s' successfully dowloaded!", Path.of(LOCAL_FOLDER, PDF_OUTPUT).toString()));                
                        System.out.println("Successfully rotated pages in document ! '" + PDF_OUTPUT + "'");
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
 

With our Java SDK you can

  • Add PDF document’s header & footer in text or image format.
  • Add tables & text or image stamps to PDF documents.
  • Append multiple PDF documents to an existing file.
  • Work with PDF attachments, annotations, & form fields.
  • Apply encryption or decryption to PDF documents & set a password.
  • Delete all stamps & tables from a page or entire PDF document.
  • Delete a specific stamp or table from the PDF document by its ID.
  • Replace single or multiple instances of text on a PDF page or from the entire document.
  • Extensive support for converting PDF documents to various other file formats.
  • Extract various elements of PDF files & make PDF documents optimized.
  • You can try out our free App to test the functionality.

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