I developed a report (without and independent of any db datasource) only with iText. I know that with JasperReports this is easy. But in my case I just storage the report in pdf file or I used acrobat for java beans to show the report to user. Now I need to change my implementation code to show this report in web browser instead to save in the file.
How I can do this?
You need 2 thinks, first the browser plugin installed on the browser and second to set the content disposition header as inline in the respose, otherwise the browser will try to download it.
response.setHeader("Content-Disposition","inline; filename=\"file.pdf\"");
I assume that you've already set the Content Type to application/pdf and know how to convert an iText document to a bytearray and transmit it to the user.
A word of caution: if people outside your organization will use this app, the might not have the pdf plugin installed, in which case, the browse will download the pdf instead of displaying the pdf.
if the browser has the appropriate add-on installed, you can just drag and drop a pdf-file into the browser and it will show it.
Or if you have a site on which you want to present the pdf, you just put a link to it:
link to your pdf
Or did you mean you want to generate html-output for your report instead of pdf?
Related
I am developing a Java Web Application (jsp/servlet) using tomcat. I need to display pdf file from local machine. can you suggest what is best way to display it?
I used iframe to display pdf file.
<iframe src="resume.pdf" width="100%" style="height:60em">
[Your browser does <em>not</em> support <code>iframe</code>,
or has been configured not to display inline frames.
You can access the document
via a link though.]
</iframe>
I think you can try a Library called XPDF , I think you can convert from PDF to HTML page , or the second option is just let the user open a link to the page (www.yourwebsite.com/pdffolder/somepdf.pdf)
If you need display a pdf file using tomcat, you can access directly to the file using the specific url where the file is located in your navigator, depending on the path where you put the file, so you can access using 127.0.0.1/files/test.pdf for example. If you need generate a pdf, the best tool I think is iText, this is an easy example how to use id: Introducing PDF and iText
How do I make a PDF file downloadable?
I'm have my web application in Tapestry 4.0.2, Spring and hibernate. when the user clicks in a "Save as PDF" link a PDF should be available to be downloaded.
So far I've a working code that generates the PDF file, but the file is saved on my desktop and what I want to do is that when the user clicks on the link the pdf file should be downloadable instead of being stored in the app. I'm using iText library for this.
You'll use a StreamResponse to render the binary and ComponentResources.createEventLink(...) to generate a link to the PDF event.
Take a look at my PDFLink component here which uses Apache FOP to render the PDF binary
* EDIT *
I just read the fine print (ie Tapestry 4.0.2). I'm unfamiliar with Tapestry 4. I'll leave this answer here as some of it may be compatible.
This question is related to another one I've posted recently: Check printing with Java/JSP
We're looking for alternatives to how we currently print checks in a Java web application via an applet. It seems the consensus is to use PDF for printing and that itext offers the ability to do so with Java.
However, it's important in our particular case that the checks are "print-only" - the user should not have any ability in the application to save the check (I know a savvy user could do a PrintScreen but we want to cover our rears and make no native functionality in the app to save checks).
I haven't been successful in browsing the web to find out if it's possible to create a PDF with itext in this manner. I have seen posts on restricting permissions in a PDF but what I'm really looking for is a way to disable the ability to save a PDF locally using itext.
Does this functionality exist? If so, could you point me to documentation/code samples on it?
I'm presuming that you're serving this PDF and wishing to print it from within a web application / web site where no out of the ordinary client side plug-ins are installed.
If printing the PDF using conventional means (e.g. Adobe Reader), the PDF MUST be downloaded to the browser's cache to be opened and printed. There is no way around that.
Now you can probably prevent the average Joe from saving the PDF locally via the following technique, but any savvy user will be able to inspect your HTML's source and download the PDF directly.
Output your PDF in iText such that when the PDF is opened, a print action automatically occurs
Put an invisible IFRAME on your HTML page which loads this PDF, but is not visible in the browser to your user
When the user loads your HTML page, the PDF will be loaded in the IFRAME and sent to the users printer (presuming that Adobe Reader is installed in the browser). Yes, the PDF will end up in the browser cache, but the user would have to be savvy enough to both recognize this and then hunt it down in their browser's cache.
If this is not acceptable, you're going to have to look at converting the PDF to another file type (e.g. pages are rendered to images displayed in the browser or perhaps a Flash / Java object that sends each page in the document to the printer directly)
The printWriter class gives some static variables for certain options: PrintWriter
And here is another SO post that might help: iText disable printing/Copying/Saving
How I can show .pdf files content in browser using GXT or GWT Libraries.
1) Web browsers can embed PDF documents handily, this is probably the most practical solution (use standard html windows in your GWT application that display the PDF, and make sure the PDF is accessible from the web). A GWT Child frame can effectively embed a pdf using native browser capabilities, just make sure you encode the content correctly in the header.
2) If you want to do some GWT/java/pdf wizardry, you can use iText's PDF reader/writer interface to customize the type of PDF data you want to display.
The ultimate answer depends on wether you want to embed a WHOLE pdf, or simply extract/create PDF contents as part of your web app.
We have Flex on the front end and Java on the back end. When a user will request for a PDF file, request will go to the Java backend, where a PDF file will be generated using Jasper Reports. What we dont know is how to display this PDF file in browser; since we dont want to use JSP/Servlets etc - It has to be flex only. Any suggestions?
Flash Player cannot natively render PDF files. This is possible using Adobe AIR but not in a Flex application. Your best bet is to call navigateToURL() and open a Servlet in a new browser tab/window. The Servlet can simply write contents of the PDF file to the OutputStream and set the appropriate HTTP headers.
i think this question is old, but it may help others, there's a new library developed by Jasper Forge them selves, which deals with JasperReports directly, i mean it's not a PDF viewer, but a JasperReport exporting tool, you can download it from here
i tried it through using JasperServer, when viewing reports you can choose from different options to export it, one of them is flash, and it's working nice
Well for starters, PDFs don't always display in the browser. It depends on the user's settings. You essentially header them the pdf file and either they download it or a program like Acrobat Reader opens in the browser to display it.
Not sure how this is done in flex, I would imagine if you're using Java one simple servlet could do it.