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How to open PDF file in new window in browser?

I'm trying to open a PDF file by requesting it from Rest endpoint. But in this case, the file is getting downloaded. I tried opening it in another window. There also it just shows new window and downloads it there.
I used Chrome. So in Chrome by default it downloads the file while in Firefox it shows the dialog box whether to open it or save it. I don't want that dialog box. But want to display the file in new window with all the features like download, print, etc which a normal pdf viewer will show.
Is there some way through which I can avoid downloading of the file by default and just display that file in another window? Content-Disposition is attachment; filename="abc.pdf" when I see the properties of the URL. Also, its content-type is application/pdf;charset=utf-8.
<a target="_blank" data-content-type="application/pdf" onclick="open(this.href, this.target, 'fullscreen=yes'); return false;" data-type="downloadTenPointDocument" href="<c:out value="${resultItem.offer.programInfoUrl}"/>">View 10-point</a>

I changed the properties of pdf file from attachment to inline and set it in response:
response.setContentType("application/pdf");
response.addHeader("Content-Disposition", "inline; filename=" + fileName + ".pdf");
I am requesting the pdf file from server and then reading it and setting it in response, changing the properties of it in response, so that its default behavior of getting downloaded is overwritten.
Thank you everyone. The answer to change the property of pdf file was right.

You won't be able to do it directly from REST endpoint.
Use target="_blank" in anchor element on your page.
go

You should try to erase attachment; property from content disposition header.

i did like that and it worked: (it wont start to download, and it will open in a new tab (target _blank) if same tab, thenit is (target _self)
show pdf in a new tab

How to set pdf title in Servlet Response

I am trying to set the Title of the Browser as the PDF document Title.
Though the pdf generates correctly, i get the Title randomly.
response.setDateHeader("Expires", 0L);
response.setHeader("Content-disposition", "inline;filename=" + title + ".pdf");
response.setContentType("application/pdf");
response.setContentLength(bArray.length);
try {
response.getOutputStream().write(bArray);
response.getOutputStream().close();}
Could someone please help me out here to override the pdf title

You cannot set the title while at the same time sending a file down to the browser. For the browser to change the "page" title, it needs to actually render an HTML document (ie. it needs to render a page).
But there is a workaround to achieve it.
Redirect it to a page that renders out the title, . And from that page trigger the browser over to the download.

Try this !!!!
In html/jsp page:
<a href="pdf/filename.pdf">
In servlet:
String filename = request.getPathInfo().substring(1);//filename.pdf
Also you cen remove .pdf from title by simple java operation.

content-disposition: attachment
Similar question found here

Replace your code with
response.setHeader("Content-disposition", "attachment;filename=" + title + ".pdf");
response.setContentType("application/octet-stream");
response.setContentLength(bArray.length);
try {
response.getOutputStream().write(bArray);
response.getOutputStream().close();}
Read answer description here
set metadata response

Getting the response as PDF in browser

I want to setup response for PDF output. How do I achieve this?
I can setup for Excel output and successfully get the desired excel sheet from the browser, but for PDF I could not get the desired output.
For Excel the following code works fine
String excelContent = "an html table..";
getServletResponse().setContentType("“application/vnd.ms-excel");
getServletResponse().setHeader("Content-Disposition","inline; filename=" + pageTitle + ".xls");
PrintWriter ps = getServletResponse().getWriter();
ps.println(excelContent);
But for PDF I tried setting the content type to PDF, but could not get it properly (no content gets displayed even though a PDF file is opened in the browser)
String excelContent = "an html table..";
getServletResponse().setContentType("“application/pdf");
getServletResponse().setHeader("Content-Disposition","inline; filename=" + pageTitle + ".pdf");
PrintWriter ps = getServletResponse().getWriter();
ps.println(excelContent);
Do html tables cannot be displayed as such in PDF?

It's very simple with the Flying Saucer renderer. It takes HTML input and returns PDF. What you have to do is to declare content type as PDF, generate HTML to a string, and call a method from Flying Saucer.
Here is an example
xhtml to pdf servlet with flyingsaucer

You are writing html context to the response stream. You need to write pdf format to the response.
You can use libraries like iText or Apache FOP to create PDF format.

Open report in excel using POI and browser remains the same

I have an export to excel link which when clicked Javascript calls action class.
JS looks like this:
function exportFt()
{
alert("Export Ft");
var url = "<c:out value='${model.contextPath}'/>/CaseIdsExport.do?";
document.forms[0].action=url;
document.forms[0].submit();
}
Struts-config looks like this:
type="com.avt.CaseExportToExcelAction"
name="CaseExportToExcelForm"
parameter="operation">
</action>
CaseExportToExcelAction open the excel and displays report. But what happens is my browsers itself opens excel. But i want my browser to stay and excel open up seperately. How do i do that?

try add this in your action / servlet:
response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-Disposition", "attachment; filename="
+ manager.getReportName() + ".xlsx");

View Contents of Text File in browser from gae blobstore java

I have text files stored in GAE Blobstore.
Now I want to read the contents of the file and view them in my browser, without actually downloading the file.
I am accessing the servlet by clicking on link on my HTML page which access the servlet.
I am serving the file with blobKey
String blobKey = req.getParameter("blobKey");
BlobKey blobKey = new BlobKey(blobKey);
resp.setContentType("text/plain");
resp.setHeader("Content-Disposition", "attachment; filename=\"" +fileName +"\"");
blobstoreService.serve(blobKey, resp);
But the above code is downloading the file instead by displaying it in a browser.
Can anyone help me please.

Remove the line setting the Content-Disposition in the header, that should do the trick.