Mixing
Delete pdf pages in java with iTextpdf
I have an existing function to show pdf files that I can't change.
The input of function is an InputStream variable.
In the past they used to pass a pdf file to it and it shows it.
But right now they asked me to show only first 30 pages of the pdf. So I am using iTextpdf and I do something like this:
PdfReader reader = new PdfReader (inputStream);
reader.selectPages("1-30");
Now I should send the result as InputStream variable to show method.
How I should do it?
Thanks
java itext
edited Jan 1 at 11:16
D D
1,61022039
asked Jan 1 at 10:55
SasanSasan
7610
add a comment |
I have an existing function to show pdf files that I can't change.
The input of function is an InputStream variable.
In the past they used to pass a pdf file to it and it shows it.
But right now they asked me to show only first 30 pages of the pdf. So I am using iTextpdf and I do something like this:
PdfReader reader = new PdfReader (inputStream);
reader.selectPages("1-30");
Now I should send the result as InputStream variable to show method.
How I should do it?
Thanks
java itext
edited Jan 1 at 11:16
D D
1,61022039
asked Jan 1 at 10:55
SasanSasan
7610
add a comment |
I have an existing function to show pdf files that I can't change.
The input of function is an InputStream variable.
In the past they used to pass a pdf file to it and it shows it.
But right now they asked me to show only first 30 pages of the pdf. So I am using iTextpdf and I do something like this:
PdfReader reader = new PdfReader (inputStream);
reader.selectPages("1-30");
Now I should send the result as InputStream variable to show method.
How I should do it?
Thanks
java itext
edited Jan 1 at 11:16
D D
1,61022039
asked Jan 1 at 10:55
SasanSasan
7610
I have an existing function to show pdf files that I can't change.
The input of function is an InputStream variable.
In the past they used to pass a pdf file to it and it shows it.
But right now they asked me to show only first 30 pages of the pdf. So I am using iTextpdf and I do something like this:
PdfReader reader = new PdfReader (inputStream);
reader.selectPages("1-30");
Now I should send the result as InputStream variable to show method.
How I should do it?
Thanks
java itext
java itext
edited Jan 1 at 11:16
D D
1,61022039
asked Jan 1 at 10:55
SasanSasan
7610
edited Jan 1 at 11:16
D D
1,61022039
asked Jan 1 at 10:55
SasanSasan
7610
edited Jan 1 at 11:16
D D
1,61022039
edited Jan 1 at 11:16
D D
1,61022039
edited Jan 1 at 11:16
D D
1,61022039
1,61022039
asked Jan 1 at 10:55
SasanSasan
7610
asked Jan 1 at 10:55
SasanSasan
7610
asked Jan 1 at 10:55
SasanSasan
7610
7610
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
You can store the result using a PdfStamper like this:
PdfReader reader = new PdfReader (inputStream);
reader.selectPages("1-30");
ByteArrayOutputStream os = new ByteArrayOutputStream();
PdfStamper stamper = new PdfStamper(reader, os);
stamper.close();
byte changedPdf = os.toByteArray();
If you want the result again to be in the InputStream inputStream variable, simply add a line
inputStream = new ByteArrayInputStream(changedPdf);
answered Jan 1 at 12:05
mklmkl
54.8k1169149
add a comment |
Get the reader of existing pdf file by
PdfReader pdfReader = new PdfReader("source pdf file path");
Now update the reader by
reader.selectPages("1-5,15-20");
then get the pdf stamper object to write the changes into a file by
PdfStamper pdfStamper = new PdfStamper(pdfReader,
new FileOutputStream("destination pdf file path"));
close the PdfStamper by
pdfStamper.close();
It will close the PdfReader too.
answered Jan 1 at 12:25
Common ManCommon Man
1,88721329
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can store the result using a PdfStamper like this:
PdfReader reader = new PdfReader (inputStream);
reader.selectPages("1-30");
ByteArrayOutputStream os = new ByteArrayOutputStream();
PdfStamper stamper = new PdfStamper(reader, os);
stamper.close();
byte changedPdf = os.toByteArray();
If you want the result again to be in the InputStream inputStream variable, simply add a line
inputStream = new ByteArrayInputStream(changedPdf);
answered Jan 1 at 12:05
mklmkl
54.8k1169149
add a comment |
You can store the result using a PdfStamper like this:
PdfReader reader = new PdfReader (inputStream);
reader.selectPages("1-30");
ByteArrayOutputStream os = new ByteArrayOutputStream();
PdfStamper stamper = new PdfStamper(reader, os);
stamper.close();
byte changedPdf = os.toByteArray();
If you want the result again to be in the InputStream inputStream variable, simply add a line
inputStream = new ByteArrayInputStream(changedPdf);
answered Jan 1 at 12:05
mklmkl
54.8k1169149
add a comment |
You can store the result using a PdfStamper like this:
PdfReader reader = new PdfReader (inputStream);
reader.selectPages("1-30");
ByteArrayOutputStream os = new ByteArrayOutputStream();
PdfStamper stamper = new PdfStamper(reader, os);
stamper.close();
byte changedPdf = os.toByteArray();
If you want the result again to be in the InputStream inputStream variable, simply add a line
inputStream = new ByteArrayInputStream(changedPdf);
answered Jan 1 at 12:05
mklmkl
54.8k1169149
You can store the result using a PdfStamper like this:
PdfReader reader = new PdfReader (inputStream);
reader.selectPages("1-30");
ByteArrayOutputStream os = new ByteArrayOutputStream();
PdfStamper stamper = new PdfStamper(reader, os);
stamper.close();
byte changedPdf = os.toByteArray();
If you want the result again to be in the InputStream inputStream variable, simply add a line
inputStream = new ByteArrayInputStream(changedPdf);
answered Jan 1 at 12:05
mklmkl
54.8k1169149
answered Jan 1 at 12:05
mklmkl
54.8k1169149
answered Jan 1 at 12:05
mklmkl
54.8k1169149
answered Jan 1 at 12:05
mklmkl
54.8k1169149
54.8k1169149
add a comment |
add a comment |
Get the reader of existing pdf file by
PdfReader pdfReader = new PdfReader("source pdf file path");
Now update the reader by
reader.selectPages("1-5,15-20");
then get the pdf stamper object to write the changes into a file by
PdfStamper pdfStamper = new PdfStamper(pdfReader,
new FileOutputStream("destination pdf file path"));
close the PdfStamper by
pdfStamper.close();
It will close the PdfReader too.
answered Jan 1 at 12:25
Common ManCommon Man
1,88721329
add a comment |
Get the reader of existing pdf file by
PdfReader pdfReader = new PdfReader("source pdf file path");
Now update the reader by
reader.selectPages("1-5,15-20");
then get the pdf stamper object to write the changes into a file by
PdfStamper pdfStamper = new PdfStamper(pdfReader,
new FileOutputStream("destination pdf file path"));
close the PdfStamper by
pdfStamper.close();
It will close the PdfReader too.
answered Jan 1 at 12:25
Common ManCommon Man
1,88721329
add a comment |
Get the reader of existing pdf file by
PdfReader pdfReader = new PdfReader("source pdf file path");
Now update the reader by
reader.selectPages("1-5,15-20");
then get the pdf stamper object to write the changes into a file by
PdfStamper pdfStamper = new PdfStamper(pdfReader,
new FileOutputStream("destination pdf file path"));
close the PdfStamper by
pdfStamper.close();
It will close the PdfReader too.
answered Jan 1 at 12:25
Common ManCommon Man
1,88721329
Get the reader of existing pdf file by
PdfReader pdfReader = new PdfReader("source pdf file path");
Now update the reader by
reader.selectPages("1-5,15-20");
then get the pdf stamper object to write the changes into a file by
PdfStamper pdfStamper = new PdfStamper(pdfReader,
new FileOutputStream("destination pdf file path"));
close the PdfStamper by
pdfStamper.close();
It will close the PdfReader too.
answered Jan 1 at 12:25
Common ManCommon Man
1,88721329
answered Jan 1 at 12:25
Common ManCommon Man
1,88721329
answered Jan 1 at 12:25
Common ManCommon Man
1,88721329
answered Jan 1 at 12:25
Common ManCommon Man
1,88721329
1,88721329
add a comment |
add a comment |
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