Error on compressing pdf containg images with aspose-pdf 21.11 for java

Aspose.PDF Product Family
1

We used Aspose - PDF 21.11for Java for PDF compression, but some pictures could not be compressed. The error message is as follows.

in.pdf.AsposePdfProcess.lambda$main$1(AsposePdfProcess.java:32)
java.lang.Thread.run(Thread.java:748)
at com.aspose.pdf.XImage.saveInternal(Unknown Source)
at com.aspose.pdf.XImage.lI(Unknown Source)
at com.aspose.pdf.InternalHelper.lI(Unknown Source)
at com.aspose.pdf.internal.l11if.lt.lI(Unknown Source)
at com.aspose.pdf.internal.l11if.lt.lI(Unknown Source)
at com.aspose.pdf.internal.l11if.lt.lI(Unknown Source)
at com.aspose.pdf.internal.l11if.lb.lI(Unknown Source)
at com.aspose.pdf.ADocument.optimizeResources(Unknown Source)
at com.aspose.pdf.Document.optimizeResources(Unknown Source)
at jin.pdf.AsposePdfProcess.pdfCompress(AsposePdfProcess.java:72)
at jin.pdf.AsposePdfProcess.lambda$main$1(AsposePdfProcess.java:32)
at java.lang.Thread.run(Thread.java:748)
Caused by: class com.aspose.pdf.internal.ms.System.lh: Argument width[-1] or height[-1] cannot be less or equal to zero
com.aspose.pdf.internal.l81n.lj.lI(Unknown Source)
com.aspose.pdf.internal.l56u.lf.lI(Unknown Source)

the sample files is as follows.http://ishare-cms-file.oss-cn-beijing.aliyuncs.com/goods/9154933.pdf

2

@samuelziyou

To ensure a timely and accurate response, please create a standalone console application (source code without compilation errors) that helps us to reproduce your problem on our end and attach it here for testing. Thanks for your cooperation.

3

openjdk version “1.8.0_212”

package jin.pdf;

import com.aspose.pdf.Annotation;
import com.aspose.pdf.Document;
import com.aspose.pdf.Page;
import com.aspose.pdf.optimization.ImageCompressionVersion;
import com.aspose.pdf.optimization.ImageEncoding;
import com.aspose.pdf.optimization.OptimizationOptions;
import jin.office.AsposeTotalClient;

import java.util.concurrent.atomic.AtomicInteger;

public class AsposePdfProcess2 {

public void loadLicense() {
    com.aspose.words.License aposeLic = new com.aspose.words.License();
    try {
        aposeLic.setLicense(AsposeTotalClient.class.getClassLoader()
                .getResourceAsStream("Aspose.Total.Java.lic"));
    } catch (Exception e) {
        e.printStackTrace();
    }
}


public static void main(String[] args) {
    AsposePdfProcess2 pdfProcess = new AsposePdfProcess2();
    pdfProcess.loadLicense();
    String fileName = "9154933.pdf";
    pdfProcess.pdfCompress(fileName,2);
    System.out.println("end--------------------");
}

public void pdfCompress(String fileName, int level){
    try {
        System.out.println("compress"+"\t" +fileName+"\t" +level);
        long l = System.currentTimeMillis();

        String compressStr = "重度";
        int quality = 10;
        int compressionLevel = ImageCompressionVersion.Standard;
        if(level == 1){
            compressStr = "轻度";
            quality = 80;
            compressionLevel = ImageCompressionVersion.Fast;
        }else if(level == 2){
            compressStr = "中度";
            quality = 50;
            compressionLevel = ImageCompressionVersion.Mixed;
        }

        String inputFile = "/home/jin/Desktop/pdfCompress/111/" + fileName;
        String outputFile = "/home/jin/Desktop/pdfCompress/111/aspose_compress_" + level + "_" + fileName;

        Document pdfDocument = new Document(inputFile);
        pdfDocument.optimize();

        // Optimize PDF document using OptimizationOptions
        pdfDocument.optimizeResources(setOptions(quality, compressionLevel));

        FlatteningAnnotations(pdfDocument);

        pdfDocument.save(outputFile);

        System.out.println("time：" + (System.currentTimeMillis() - l)/1000 +"\t"+ fileName +"\t" + compressStr );
    }catch (Exception e){
        e.printStackTrace();
    }
}

public OptimizationOptions setOptions(Integer quality, Integer imageCompressionVersion) {
    // Initialize OptimizationOptions
    OptimizationOptions optimizationOptions = new OptimizationOptions();

    // Set CompressImages option
    optimizationOptions.getImageCompressionOptions().setCompressImages(true);

    // Set ImageQuality option
    optimizationOptions.getImageCompressionOptions().setImageQuality(quality == null ? 50 : quality);

    // Set Image Compression Version to fast
    optimizationOptions.getImageCompressionOptions().setVersion(imageCompressionVersion);// ImageCompressionVersion.Fast);

    //RemovingUnusedObjects
    optimizationOptions.setRemoveUnusedObjects(true);

    //RemovingUnusedStream
    optimizationOptions.setRemoveUnusedStreams(true);

    //LinkingDuplicateStream
    optimizationOptions.setAllowReusePageContent(true);

    //FlateDecode 压缩
    optimizationOptions.getImageCompressionOptions().setEncoding(ImageEncoding.Flate);

    return optimizationOptions;

}

public static void FlatteningAnnotations(Document pdfDocument) {
    for (Page page : pdfDocument.getPages()) {
        for (Annotation annotation : page.getAnnotations())
            annotation.flatten();
    }
}

}

4

@samuelziyou

We have logged this problem in our issue tracking system as PDFJAVA-41332. You will be notified via this forum thread once this issue is resolved.

We apologize for your inconvenience.