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LibrePDF/OpenPDF

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OpenPDF is an open-source Java library for creating, editing, rendering, and encrypting PDF documents, as well as generating PDFs from HTML. It is licensed under the LGPL and MPL.

30 mentions on Hacker News by 5 people: 16 stories, 14 comments · first 2017-02-15 · latest 2025-10-13

Mentions per year 30 mentions · busiest year 2018 (8)
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  1. https://github.com/LibrePDF/OpenPDF
    comment by roschdal · 2025-10-13 · in Spotlight on pdfly, the Swiss Army knife for PDF files
  2. OpenPDF for Java https://github.com/LibrePDF/OpenPDF
    comment by roschdal · 2025-10-01 · in Ask HN: What is nowadays (opensource) way of converting HTML to PDF?
  3. OpenPDF is a fork of iText with Lgpl and Mpl license: https://github.com/LibrePDF/OpenPDF
    comment by roschdal · 2025-02-20 · in iText PDF Library turns 25
  4. …will live forever in the memory of Java developers, but we've all abandoned itext for the fork: https://github.com/LibrePDF/OpenPDF
    comment by bklyn11201 · 2025-02-20 · in iText PDF Library turns 25
  5. Try OpenPDF https://github.com/LibrePDF/OpenPDF
    comment by roschdal · 2022-05-04 · in Ask HN: Why is the PDF format so inaccessible?
  6. OpenPDF https://github.com/LibrePDF/OpenPDF
    comment by roschdal · 2022-03-17 · in Show HN: PDF API – Generate, convert, and modify PDF documents
  7. There is an actively maintained fork of iText: https://github.com/LibrePDF/OpenPDF From their background section: It is a fork of iText version 4, more specifically iText svn tag 4.2.0, which was hosted publicly on sourceforge with LGPL…
    comment by mboehm · 2020-01-31 · in AGPL License
  8. Here's a PDF signing example: https://github.com/LibrePDF/OpenPDF/wiki/Signing
    comment by roschdal · 2019-07-30 · in OpenPDF 1.3.0
  9. …100, 700 ); contentStream.drawString( "Hello World" ); contentStream.endText(); [1]: https://github.com/LibrePDF/OpenPDF/blob/master/pdf-toolbox/... [2]: https://pdfbox.apache.org/1.8/cookbook/documentcreation.html
    comment by _JamesA_ · 2019-07-29 · in OpenPDF 1.3.0
  10. …Also, if you are using iText 1.2.x, it's time to update to OpenPDF, which should be compatible. https://github.com/librepdf/openpdf
    comment by roschdal · 2019-07-29 · in OpenPDF 1.3.0
  11. …with a fix for the signature wrapping attack. For details see https://pdf-insecurity.org/ . https://github.com/LibrePDF/OpenPDF
    comment by roschdal · 2019-03-09 · in OpenPDF 1.2.11 released, with signature wrapping attack fix
  12. Hi! You can help here: https://github.com/LibrePDF/OpenPDF
    comment by roschdal · 2018-09-17 · in Ask HN: How do I start open source contribution?
  13. OpenPDF is an open source Java library for creating PDF files: https://github.com/LibrePDF/OpenPDF
    comment by roschdal · 2018-02-10 · in Ask HN: Small Open source projects that need contributions
  14. …of the CVE-2017-9096 iText XML External Entity Vulnerability, which is fixed in this release. https://github.com/LibrePDF/OpenPDF
    comment by roschdal · 2017-11-18 · in OpenPDF 1.0.5 released