Develop Reference

iText7 - add content on top of the same page to an existing file [duplicate]

I have a requirement to add few lines at the top of an existing PDF.
I have done this using a PdfReader and a PdfStamper.
In order to have more space in the page header area, i need to move down the current contents by 1 or 2 lines.
Below is from the forum. but it doesn't solve the issue.
How to insert content in the middle of a page in a PDF using IText
Any suggestions?
-i can not upload the pdf or the image of the pdf because am a new user

Do I interpret your question correctly if I assume that you really want to move down everything on the page and add some lines above?
You can do that by changing the media box (and crop box and what other boxes might be explicitly defined for your page) and then add the few lines on top the same way you already do it now.
You can access those boxes in the respective page dictionary which you can retrieve via the PdfReader. Look up the PDF specification for details on those boxes.
Or do I interpret you incorrectly and you only want to move down some text while keeping existing headers and footers in place? In that case Alexis' answer to the other question you refer to still holds.

How to generate custom PDF documents with text and images from user input Android

In my project I want users to be able to create custom documents with text and images with the document then being saved to PDF format.
I would like that document to be generated as blank at first and then the user can insert text boxes and images from a gallery, both of which can be moved, resized, or deleted. I would also like a function to add new pages, with undo and redo last action buttons.
Is this possible in Android Studio? I've watched some tutorials and they use EditText for text input but these are not user-generated, or moveable. Same goes for image insertion.
Does anybody have any documentation on creating custom documents of this nature? I am coding in Java.
Thanks.

Do I have to physically save image in order to display it in JSP?

I have an image on top of which I need to add different text based on url parameter. I'm planning to do this with Graphics2D/BufferedImage.
The question is, do I have to save image to disk in order to show it in JSP to the user? The purpose of the image is only be displayed and I'd rather not to save thousands of the images that will be generated...
Thanks!

You do not have to save the image to disk. You can use a bare-bones vanilla servlet to generate the BufferedImage, and then use ImageIO.write() to write that image to the response.getOutputStream(). Just make sure you set the headers to the correct content-type. Then, in the HTML generated by the JSP, just use the URL of the servlet as the src for the img tag.

You can base64 encode the image and chuck it onto the page. Browsers won't cache it, though.
Embedding Base64 Images
https://en.wikipedia.org/wiki/Data_URI_scheme#Web_browser_support

How to Merge a background Image and the HTML Content as one downloadable Image

Thanks in Advance. I am working on JSP Platform and I have a requirement wherein I need to provide a membership card which will have an image as the Background with all the details like name, telephone number, Membership ID and other personal details. All these details will be captured in a form and then displayed over the card image with the details.
But when the html form is submitted the data is saved in MYSQL and the JSP page displays the Card with the details on its desired position. What I am looking at is that is there a way to make that card image along with the details appear as an image which the user can directly download coz now if the user is trying to download he just gets the Blank background image without any data. Is there a way to merge the card image and the data as a single image or something which can easily be downloaded and also sent as an image to the users email.

You want something like a screenshot, right?
Here a tool to convert HTML source to pdf:
http://wkhtmltopdf.org/
This post can also help:
Convert web page to image

Java Swing - PDF Thumbnail Viewer

I'm kinda new in programming and I'm trying to learn everything by myself.
Currently I'm working on a project to sort all my bills and other stuff.
I managed it to updload the bills as PDF files onto a FTP Server.
I'm displaying all outgoing money in a JTable and now I'd like to see a Thumbnail of the PDF
in the right part of my swing GUI after i selected a table row.
Here is what I was thinking of:
Get the selected row via a clickListener, read the bill number, which is the same number the file is called on the FTP (e.g. Number: "20130012" / File: "20130012.pdf").
Download the file from the FTP and save it somewhere temporary?!
and now I need to display the pdf in my grid layout but how =) ? If
it is a picture I could use the Image Icon right? But how do I get
the effect with a pdf?
As soon as I click on the thumbnail, I'd like to open up a pdf reader to see the actual file.
Sorry if this is to less information... just let me know if you need further information.
I'd really appreciate a few answers =)
Thanks

Use a ListSelectionListener to determine which JTable row was clicked and fetch its PDF file. If fetch latency is a problem, use SwingWorker. Once you create a thumbnail image of each page in the selected row's PDF, you can display them in a JList as shown here. Display the selected page at full size in your implementation of ListSelectionListener.