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I have been developing Android application, and I need to read PDF-files in my app. There are some requirements for lib:
will the solution be able to read fairly large files? Like if the file is much larger than available memory, would it be able to read piece by piece as the user browses?
will in the future this module be able to read from a stream not just from a file?
will the solution, with this or future project/effort be able to re-flow text - to accommodate different screen sizes?
what version of the PDF format (up to) will it be able to read.
Please, recommend me some library.
Hi yeah you can do it with iText lib in java. see this Itext Lib
and also see this Code
hope it will help you. and one thing you cant edit PDF in android directly yet there is no such API or lib. try to fin more Google it.
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I need to convert a PDF into PDF/A using some java library or program. Is it possible to achieve this using some opensource library like itextPDF.
Could the same logic work in a generic format to convert pdf in pdf/A
try free Spire.PDF for java,
add the dependencies and use its converter. It seems to be an easy usage - I never done it myself - cause I didn't need it :) -
Here you can add the dependencies from the official website, https://www.e-iceblue.com/Tutorials/Licensing/How-to-install-Spire.PDF-for-Java-from-Maven-Repository.html
and here you have a small sample of it, https://dev.to/jazzzzz/convert-pdf-to-pdf-a-with-a-free-java-api-4nm7
hope it could help.
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I was looking for any library or sources which helps me to read MDX dictionary files in Java, I have found some resources already such as mdict-android-opensource but it does not have its implantations to how read mdx database files. Does any one knows a good source about these files and possible libraries which could be used for it?
Thanks very much.
As far as I know, mdx is not a 'database'. database can be something like a file system, while mdx is just a set of binary data stored on the disk. However they uses similar techniques: Index and Binary search.
mdict-android-opensource only opensourced it's UI side.
Here's my implementation to parse and query mdx files: mdict-java ,it's under the Apache license.
and you can also try my application on the play store.
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I want to read content(text data) from jpg image. Can someone give me a sample java program to refer.
The image would be a white page. The text would be in black. How do I extract data(lines/alphabets) and print it.
Help would be much appreciated.
Thanks
Take a look at this SO question for OCR in Java. Once you are able to pull out the text, doing manipulations on the text can be taken care of by using Apache Lucene. Also, in case you are interested in image metadata as well, Apache Tika might be useful.
Pay attention for products by ABBYY. For example there is ABBYY Cloud OCR SDK – cloud-based OCR technology. It has very high recognition accuracy, a lot of documentation and good support.
You can try to use it in several easy steps:
1. Create a free account
2. Create an application using code samples for Java
If you need additional help, use ABBYY's forum or publish your questions in comments below.
I work for ABBYY and ready to help you.
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I'm looking for a good libraries to edit .mp3 tags ID3v(22,23,24) (like author, title, track and this kind of stuff), write in java or clojure, any ideas ?
There is some standard "de facto" in this field...
I have just look at this question:
https://stackoverflow.com/questions/73147/i-need-an-id3-tag-reader-library-for-java-preferably-a-fast-one
But if there is something more would be great...
Perfect would be if the libraries supported not only .mp3 but also .ogg and .wma...
Thanks everybody, and sorry for my English...
You can use JAudiotagger library JAudiotagger
I built a Swing project last year that used JAudioTagger, and it worked great.
I only added support for mp3 to my app, but I believe it support more than that.
I know this is a bit late, but maybe it will help someone. I also wanted a library for this, so I wrote a library supporting all of the commonly used tag fields in mp3, ogg, flac, and mp4/m4a files. Source and documentation can be found here: https://github.com/DanPallas/green-tags and it is up on clojars.
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Consider the requirements for embedding help in a Java desktop application (or applet):
Single source for content (such as AsciiDoc) to generate high quality PDF manuals1
Hooks for context-sensitive help
Robust, simple, and well documented API (under an hour to learn)
Small footprint (a sub-100K Java archive)2
Integrate as a docked MDI-style window, or a separate window
Free open source software
Google says:
JavaHelp
Java Programming Help
Help Authoring Tools
Which of these, or any others, would you recommend?
1Storing the content in AsciiDoc format would be ideal, so long as conversion is trivial.
2Up to 500kb.
Have a look at DocBook - last time I looked it could generate PDF, HTML and JavaHelp from files written in DocBook XML .
A crash course is available at: http://opensource.bureau-cornavin.com/crash-course/
Definitely Asciidoc, or its more recent cousin AsciiDoctor.