Is Jpedal library totally free? As I noticed the download link is mentioning trial! :(
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Do you need a free/open source alternative? – Boris Pavlović Feb 14 '11 at 08:57
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Downloads page also links to LGPL viewer – mark stephens Feb 14 '11 at 11:18
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@ Boris Pavlović Yes I do need a free full java library to render PDF files. – ehsun7b Feb 14 '11 at 11:58
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@ Boris Pavlović I need the library not the Viewer! – ehsun7b Feb 14 '11 at 11:59
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1There is PDFRenderer, Icepdf or Mulitvalent. – mark stephens Feb 14 '11 at 14:16
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they say that PDFRenderer does not support all new features of PDF files and I could not download it anywhere! :( Where can I find it? – ehsun7b Feb 14 '11 at 16:05
5 Answers
Full JPedal library is proprietary/commercial licensed: http://www.jpedal.org/support_faq.php#licensing
A cut-down version is open source under LGPL.

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That link redirects to the companies home page. The pricing for the licence is at the bottom of this page: https://www.idrsolutions.com/jpedal/ – Sophia_xoox Apr 25 '19 at 13:28
Yes Jpedal is totally free if you comply to the LGPL license.
Update:
The world changed in the meantime and the (LGPL) open source Jpedal was stopped. If you look for that version it was removed from sourceforge. The last vrsion was based on the 4.92 Version you can download it here. This library is using Swing/AWT for rendering PDFs.
A while ago the newer version of Jpedal was released under the name of 'OpenViewerFX' and is basically the same as above but using JavaFX for rendering PDFs. Since JavaFX is used it needs Java 1.8.
Update II:
The OpenViewerFX was also discontinued. So there is currently no open source version of jpedal. You can still find the code here.

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You need to do more research.
A quick search of the website shows that the pdf viewer is LGPL, while the full client is not. See JPedal Download the 30 day trial version and JPedal - Commercial vs LGPL version comparison

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There's a section in their FAQ that covers the licensing issue: Jpedal FAQ

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For those searching for the free version, you can get JPedal LGPL v4.92b23 here:
https://mvnrepository.com/artifact/org.jpedal.jpedal-lgpl/jpedal-lgpl/4.92b23
There's also a github fork here. Testing it for pdf->png conversion seemed to produce mixed results compared to the original version.

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