PDFBox
The Apache PDFBox® library is an open-source Java tool for working with PDF documents. This project allows the creation of new PDF documents, manipulation of existing documents and the ability to extract content from documents. Apache PDFBox also includes several command-line utilities. Apache PDFBox is published under the Apache License v2.0. Extract Unicode text from PDF files. Split a single PDF into many files or merge multiple PDF files. Extract data from PDF forms or fill a PDF form. Validate PDF files against the PDF/A-1b standard. Print a PDF file using the standard Java printing API. Create a PDF from scratch, with embedded fonts and images. Save PDFs as image files, such as PNG or JPEG and digitally sign PDF files. See also the export control information related to the encryption features included in Apache PDFBox.
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pdfRest API Toolkit
pdfRest is a REST API for high-volume PDF processing, built on the Adobe PDF Library. Call it from any language to convert, generate, extract, secure, and prepare PDFs in production pipelines, chaining calls by passing a resource ID between steps.
Convert Office, HTML, images, email, and Markdown to PDF, and PDF to Word, Excel, PowerPoint, images, Markdown, PDF/A, PDF/X, and PostScript. Generate PDFs from scratch with text, images, shapes, and attachments, with accessibility tagging. Extract via OCR, text/image extraction, form data, metadata, AI summarization, translation. Secure with signing, encryption, restrictions, watermarking, two-step redaction, and TDM Reserve to opt out of AI training. Handle prepress: color conversion, transparency flattening, page boxes, rasterization. Manage forms: import/export, flatten, XFA-to-AcroForm.
Deploy on pdfRest Cloud (US or EU) or self-host via Docker, Kubernetes, or AWS Marketplace (BYOL) — same API, same code, just change the base URL.
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jPDFOptimizer
jPDFOptimizer is a Java library to optimize and reduce the size of PDF documents.
jPDFOptimizer can remove unnecessary objects in PDF documents, detect and merge duplicate images and fonts, and modify image resolution, compression and color spaces to reduce size. The library provides a powerful, yet simple API to let the calling application fine tune how to optimize documents.
jPDFOptimizer is built on Qoppa Software’s extensive PDF technology and requires no third party software or drivers. The library is 100% Java and can run on any operating system for which there is a standard Java implementation, such as Windows, Linux, Unix, Solaris and others.
Features:
-Modify image resolution, compression and color spaces
-Compress images using JPEG, JPEG 2000 and JBIG2
-Compress data streams
-Remove unused objects
-Remove and merge duplicate images and fonts
-Flexible optimization options
-Linearize PDFs for fast web view
-Support for latest PDF format
-Support for JDK 1.6+
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jPDFWeb
jPDFWeb is a Java library to convert PDF documents to SVG / HTML5. The library can save to the local file system or to an output stream to be able to serve the document directly to a client browser when working within a J2EE server.
jPDFWeb is built on top of Qoppa’s proprietary PDF technology so you do not have to install any third party software or drivers. Since it is written in Java, it allows your application to remain platform independent and run on Windows, Linux, Unix (Solaris, HP UX, IBM AIX), Mac OS X and any other platform that supports the Java run-time environment.
Features:
-Convert PDF Documents to HTML5 / SVG
-Convert Microsoft Word & Excel Documents to HTML5 (when combined with jOfficeConvert)
-Convert Text
-Convert Images
-Convert Vector Graphics
-Convert Annotations, Links and Form Field Data
-Convert Digital Signature Validation Status
-Export Page Thumbnails
-Support for CJK fonts
-Support for latest PDF format
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