1. The following jar packages need to be imported
<!--word to pdf-->
<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-words</artifactId>
<version>15.8.0</version>
</dependency>
<!--xlsx or xls to pdf-->
<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-cells</artifactId>
<version>8.5.2</version>
</dependency>
<!--ppt to pdf-->
<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-slides</artifactId>
<version>19.6</version>
</dependency>
2. Remove watermark files
3. Once you are ready, start the actual operation
(1), first is the conversion operation of xlsx and xls to pdf
i, guide package
import com.aspose.cells.License; import com.aspose.cells.PdfSaveOptions; import com.aspose.cells.Workbook; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream;
ii. Method of reading and removing watermark files
public static boolean getLicense() {
boolean result = false;
try {
//Read license.xml
InputStream is = ExcelConvertPdfUtil.class.getClassLoader().getResourceAsStream("license.xml");
License aposeLic = new License();
aposeLic.setLicense(is);
result = true;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
iii. Conversion operation
public static void excel2pdf(String sourceFilePath, String desFilePathd){
//Verify the License. If not verified, the converted PDF document will have a watermark.
if (!getLicense()) {
return;
}
log.info("Start conversion excel==start");
FileOutputStream fileOS = null;
long old = System.currentTimeMillis();
try {
//Original excel path
Workbook wb = new Workbook(sourceFilePath);
fileOS = new FileOutputStream(desFilePathd);
PdfSaveOptions pdfSaveOptions = new PdfSaveOptions();
pdfSaveOptions.setOnePagePerSheet(true);
int[] autoDrawSheets={3};
//When the corresponding sheet page width in excel is too large, it will be split and paged in PDF. Scaled here.
autoDraw(wb,autoDrawSheets);
int[] showSheets={0};
//Hide unnecessary sheet pages in the workbook.
printSheetPage(wb,showSheets);
wb.save(fileOS, pdfSaveOptions);
fileOS.flush();
long now = System.currentTimeMillis();
log.info("Total time spent: {}",((now - old) / 1000.0) );
} catch (Exception e) {
e.printStackTrace();
}finally{
if(fileOS!=null){
try {
fileOS.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
/**
* Hide unnecessary sheet pages in the workbook.
* @param wb
* @param page displays the sheet array of the page
*/
public static void printSheetPage(Workbook wb,int[] page){
for (int i= 1; i < wb.getWorksheets().getCount(); i + + ) {
wb.getWorksheets().get(i).setVisible(false);
}
if(null==page||page.length==0){
wb.getWorksheets().get(0).setVisible(true);
}else{
for (int i = 0; i < page.length; i + + ) {
wb.getWorksheets().get(i).setVisible(true);
}
}
}
/**
* Set the automatic stretching ratio of printed sheets
* @param wb
* @param page sheet array of automatically stretched pages
*/
public static void autoDraw(Workbook wb,int[] page){
if(null!=page & amp; & amp;page.length>0){
for (int i = 0; i < page.length; i + + ) {
wb.getWorksheets().get(i).getHorizontalPageBreaks().clear();
wb.getWorksheets().get(i).getVerticalPageBreaks().clear();
}
}
}
iiii, run file
public static void main(String[] args) {
String inputExcelPath = "/Users/Desktop/xxx.xls";
String outputPdfPath = "/Users/Desktop/xxx.pdf";
excel2pdf(inputExcelPath,outputPdfPath);
}
(2), ppt to pdf conversion tool class
i, guide package
import com.aspose.slides.License; import com.aspose.slides.Presentation; import com.aspose.slides.SaveFormat; import lombok.extern.log4j.Log4j2; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream;
ii. Method of reading and removing watermark files
public static boolean getLicense() {
boolean result = false;
try {
// license.xml
InputStream is = ExcelConvertPdfUtil.class.getClassLoader().getResourceAsStream("license.xml");
License aposeLic = new License();
aposeLic.setLicense(is);
result = true;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
iii. Conversion method
public static void ppt2Pdf(String inPath,String outPath){
//Verify License and remove watermark
if (!getLicense()) {
return ;
}
long start = System.currentTimeMillis();
try {
FileInputStream fileInput = new FileInputStream(inPath);
Presentation pres = new Presentation(fileInput);
FileOutputStream out = new FileOutputStream(new File(outPath));
pres.save(out, SaveFormat.Pdf);
out.close();
} catch (Exception e) {
e.printStackTrace();
}
long end =System.currentTimeMillis();
// Conversion time
log.info("pdf conversion successful, total time taken: {}" , ((end - start) / 1000.0) + "seconds");
}
iiii, run file
public static void main(String[] args) {
String inputExcelPath = “/Users/Desktop/xxx.ppt”;
String outputPdfPath = “/Users/Desktop/pdf.pdf”;
ppt2Pdf(inputExcelPath,outputPdfPath);
}
(3), work to pdf file
i, guide package
import com.aspose.words.Document; import com.aspose.words.License; import com.aspose.words.SaveFormat; import lombok.extern.log4j.Log4j2; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream;
ii. Read and remove watermark files
public static boolean getLicense() {
boolean result = false;
try {
// license.xml should be placed in
InputStream is = WordConvertPdfUtil.class.getClassLoader().getResourceAsStream("license.xml");
License aposeLic = new License();
aposeLic.setLicense(is);
result = true;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
iii. Conversion method
/**
* @param inPath source file path
* @param outPath new pdf file path
*/
public static void doc2pdf(String inPath, String outPath) {
// Verify the License. If not verified, the converted PDF document will have a watermark.
if (!getLicense()) {
return;
}
log.info("Start converting doc==start");
FileOutputStream os = null;
try {
long old = System.currentTimeMillis();
// Create a new blank pdf document
File file = new File(outPath);
os = new FileOutputStream(file);
// Address is the word document to be converted
Document doc = new Document(inPath);
// Fully supports DOC, DOCX, OOXML, RTF HTML, OpenDocument, PDF,
doc.save(os, SaveFormat.PDF);
// EPUB, XPS, SWF mutual conversion
long now = System.currentTimeMillis();
// Conversion time
log.info("Total time spent: {}",((now - old) / 1000.0) );
} catch (Exception e) {
log.info("Error when converting pdf==[{}]",e);
}
finally {
try {
os.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
iiii, run
public static void main(String[] args) {
String inPath = "/Users/Desktop/xxx.doc";
String outPath ="/Users/Desktop/xxx.pdf";
doc2pdf(inPath,outPath);
}