I have been bumping my head against the wall with this one, have researched and pretty much tried every library suggested to me. I am currently trying to write a program in java that will extract text AND images from a pdf file and allow me to write the extracted content to a word file. I have managed to extract the content using the ICEpdf library, however the problem is that I need to be able to write the content in the exact same order as it was read. So, to clarify, I need a library that will help me keep track of where exactly in the page the text and images are situated so I can put them in the same place in my word file.
A PDF to Word converter is a horribly complex proposition.
Your best bet will probably to use Open Office to do it for you and not even try to handle the intermediate steps.
http://www.openoffice.org/api/
Look at this: Advanced PDF parser for Java
OFF:
-Also to my knowledge there is a python parser that sorta converts the pdf to html (that way you can keep track of the ordering of the objects within the pdf). I know its not java, but you might be able to use the output.
http://www.unixuser.org/~euske/python/pdfminer/index.html
Related
I am currently working at a project which generates contracts. The idea is that I put the data in a form and save it in a simple database.
So long, this was my favorite place to search for good ideas and simple solutions.
Now I am facing another problem and I don't know how I can solve that. I want to create a PDF and replace some placeholders with some data from my form.
One idea was, that I use an existing Word template with some bookmarks and replace them with the data from my form. Maybe there is a way to do that, and I am just too stupid to find it.
Another idea was, that I am using XML. Therefore, I thought I was clever and just converted the Word template to an PDF, so I am able to convert that PDF to an XML. Attached, you find the XML file. But now I need the XSL file - is there an easy way to create the XSL file?
Or maybe there is another simple solution to solve my problem.
In these attachments you find the PDF file, the Word template and the XML:
Thank you a lot :)
Using a template is a good idea - it makes some changes much quicker to make and then deploy. The comments above are focused on conversion, but don't forget you need to merge your data in (population) first.
If you can use Adobe tools, you can have a PDF template and use the Adobe tools to populate. This saves a "conversion" stage.
You mentioned using Word for templates. This means you to run through two stages of processing:
population - docx is a zipped set of XML files - so you can process them with your own code or using a library.
conversion - you need pdf, so you have to convert the docx to pdf. You also have to watch out for fonts at this stage (ie make sure they are available on your host).
The population stage you could do yourself since you are familiar with XML. But it is definitely complicated. The conversion needs to use a tool that is ideal for it. There are a few mentioned in the comments already.
There are some free/os and commercial tools that can do both parts:
docx4j
JOD Reports
Libre Office (using the Java Uno API) (I blogged this once - Java Convert Word to PDF with UNO)
Docmosis (please note I work for Docmosis)
I suggest starting with the simple example you have attached and prove you can both populate and convert that. Then switch to a more complicated example to see if you can do the other things that might be required (eg repeating or conditions or other logic) during the population stage.
I want to implement a function that can see PowerPoint on the web at this time.
You can do it simply by converting PowerPoint to an image, but if you convert it to an image, I think there are issues that you can not use video or audio.
So the idea was to convert PowerPoint to HTML and place it where I wanted. However, it does not have much ability to directly implement the pure function of converting PowerPoint to HTML. To solve this problem, I have been looking for open source or various libraries, but I have not found them yet.
The development environment is java8 + Spring Boot.
If you are OK with converting your PPT files to PDF before converting them to HTML, then pdf2htmlEX could be worth looking at. It is the best tool I could find for this kind of work, as it is capable of converting PDFs to HTML very precisely (have a look at the exmples 1,2,3,4). You should be able to find wrapper libraries in the maven repo so that you are able to call it from your Java applications.
If you are OK in using iframe you may use a Microsoft solution https://products.office.com/it-IT/office-online/view-office-documents-online
You may use this code:
<iframe src='https://view.officeapps.live.com/op/embed.aspx?src=[you_ppt_url]' width='100%' height='600px' frameborder='0'>
There's an older node package called PPTX2HTML. It outputs a bunch of garbled code on a canvas element, but it might work. They even have a demo website to try it out. They seemed to have broken the powerpoint up into parseable XML and rendered the elements.
I am trying to extract info from a particular website and then store it in a separate text file. for example, i want to go to http://www.ncbi.nlm.nih.gov/nuccore/293762 and extract genome sequences. These sequences are formatted as groups of 10 characters only including the letters "a,t,c,g" separated by white spaces. They will look something like this: "acctgtacgg". Ive been searching for a solution for hours but all I find are java libraries that parse html code such as jsoup. The problem with this is that when I view the source of the website and search for the genome sequences they don't seem to be included in the source code, although I can find them in the DOM tree. Is there a way to programmatically read the actual data on a web page without downloading the source? Or is there a better way to go about this? Please point me in the right direction it will be greatly appreciated.
I am looking for a convenient method to export some data from my database into a form that would be editable afterwards. The perfect scenario would be to export a word document, and perhaps a brutally simple solution would be to generate HTML and copy/paste it into Word.
I've looked at several open source libraries for generating word documents, but they seem a bit too simple or incomplete. I need support for tables and embedded images and control over formatting the fonts, table borders etc. (too much formatting seems to be lost when copying html and pasting into word).
Although Word is the end format, it'd be fine to generate it in any format that word would be able to open and subsequently save as DOCX.
I really haven't been able to find anything about generating ODT files (server side without client installation).
I would just dive into the ASPOSE libraries, but it'll take ages (and significant pain) to get a purchase order sorted out so I need to make sure its the only viable option before taking that route.
I could generate it as an excel file and copy that to word - this is looking like the best option currently.
I wrote a web app for generating PDF by filling data into a pre-saved PDF template, template edited by acrobat, with some text-fields. But the context of those text-fields seems in a different layer and cannot affect other existing words in template.
... But I want it affect the existing words and make them flow base on how many data fill into the text-fields.
The solution maybe use program to generate a whole PDF instead of using template. But the template changes really often in my case, I don't want waste a lot of time to adjust the position and format by coding...
Do anyone know how to use text-field with auto flow in a PDF template? just like a Word document.
PDF doesn't work like that. You need to generate the whole PDF.
Ah... but from what?
There are quite a few HTML->PDF converters out there. You could fill in your template HTML, and convert it that way.
You could develop your own input format (for your template), and write an app that reads it and builds a PDF.
The later is similar enough to HTML->PDF, that unless you can't find a converter that handles some PDF feature or other you need, I'd just go that route. There are LOTS of html->pdf apps out there. You can search SO, google, whatever. Lots.