PD4ML
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Add PDF generating functionality to your Java/PHP/Lotus applications. PD4ML is a PDF generating tool that uses HTML and CSS (Cascading Style Sheets) as page layout and content definition format. Written in 100% pure Java, it allows users to easily add PDF generation functionality to end products. With PD4ML you can control PDF page size, orientation and page breaks, while adding formatted headers, footers and page numbering. PD4ML is Unicode compatible to support most of Asian, Middle-East, European and Latin character sets. True Type and Open Type fonts embedding is supported including font styling such as Bold and Italic.
New in PD4ML Pro 3.6.0fx1
Fixed bugs:
- — entity wrongly interpreted when TTF embedding is switched off
- not closed head tag results a blank document
- background-image: none/inherit CSS property causes an undesired resource request
New in PD4ML Pro 3.6.0fx1b6
- New API method pd4ml.useHttpRequest(HttpServletRequest, HttpServletResponse) allows PD4ML to load resources via HTTP RequestDispatcher
- New API method pd4ml.clearCache() removes all internally cached resources
- ­ entity support
Fixed bugs:
- By multi-document conversion some documents may loose HTML background
- "overflow: hidden" does not work for textarea tag
- Minor refinements
New in PD4ML Pro 3.6.0fx1b1
- New configuration switch m.put(PD4Constants.PD4ML_ABSOLUTE_ADDRESS_SPACE, "document") to switch PD4ML into backward compatibility mode of absolute positioning
Fixed bugs:
- b tag does not work, however "text-weight: bold"does (introduced in v360)
- Default text align in dir="rtl" mode is "left", instead of "right"
- Errors by parsing of particular PNG sub-types.
- Text style of legend tag is not overriddable with CSS.
New in PD4ML Pro 3.6.0.0
- Pd4Cmd command-line HTML-to-PDF converter
Fixed bugs:
- Invalid text background inheritance
- MS-Office-specific 'windowtext' and 'window' color names ignored
- No table cell background if the cell contains <br> tag only.
- Minor text flow issues
New in PD4ML Pro 3.6.0b3
- Tooltips from TITLE attributes
- New PD4Util class with the first utility methods: pd4fonts.properties generation API
Fixed bugs:
- Minor dynamic font substitution logic issues
- Some PNG images may cause resulting document format corruption
- Bottom and top table breaks borders render refinement
New in PD4ML Pro 3.6.0b2
- Page-oriented address space for absolutely positioned elements.
- Basic HTTP authentication support
- A possibility to define bottom and top borders for table breaksJSP taglib mapping of PD4ML.setDynamicParams()
- Blank page suppress logic
- MIME decoder for Lotus Notes attachments
Fixed bugs:
- relative image references from stylesheet use document location instead of the stylesheet location as docbase
- relative hyperlinks point to local filesystem instead of locations related to document's URL
- possible 1-2px gap between header/footer and page edge
New in PD4ML Pro 3.6.0b1
- PDF/A< support (PD4ML Volume DMS Edition)
- pd4ml:toc tag can be inserted at any place of the document now.
- pd4ml:page.break tag allows to control document page numbering and to insert an extra blank page to guarantee the next page is even or odd
Fixed bugs:
- hyperlinks in header or footer work not always
- entities in attributes are not substituted with values if the attribute name is uppercased
- invalid results of "font-size: inherit" and "font-family: inherit"
- single images, tables and input elements do not position absolutely
- "TD+TD+TD" CSS selectors are overridden by "TD+TD"
New in PD4ML 3.5.1
- Fixed bugs: - few minor issues
New in PD4ML Pro 3.5.1b1
- PNG image alpha layer support
- A possibility to place <style> outside of <head>
- new API method allows to limit a range of of PDF pages to output
- percentage IMG width support
Fixed bugs:
- "overflow: hidden" not always correctly interpreted by document height calculation and the "hidden" content may cause extra blank pages to appear.
- <pd4ml:footnote> definition after <pd4ml:page.break> makes the footnote to print on a wrong page
- <pd4ml:footnote> content overlapped by page background (if any)
- Bullet points of <li> do not inherit text color
New in PD4ML Pro 3.5.0
- HTML-to-BufferedImage output module
New in PD4ML Pro 3.5.0b6 - Fixed bugs:
- mixed nesting of absolutely and relatively positioned elements may result a broken layout
- external relative PDF hyperlinks are converted to absolute ones. In some cases they erroneously point to the local file system.
- inline header/footer definitions may be impacted by neighbor floats, which results undesired margins.
- nesting of ordered and unordered lists issues.
New in PD4ML Pro 3.5.0b4 - Fixed bugs:
- multiple minor issues
New in PD4ML Pro 3.5.0b1
- limited support of position: absolute and position: relative block element styles
- <pd4ml:footnote> and <pd4ml:footnote.caption> tags
- support of plugged custom resource loaders
- Fixed bugs:
- empty <a name="identifier"></a> anchors ignored
PD4ML is a compact Java library which implements an optimized HTML rendering engine and PDF output module.
PD4ML requires only one external free open source component "CSS Parser". So in order to add PDF output functionality to your product you only need to add 2 JAR files: pd4ml.jar (452KB) and ss_css2.jar (160KB)
PD4ML also offers JSP custom tag library pd4ml_tl.jar (30KB), which allows you to convert existing JSP pages to PDF documents with minimal effort. In the simplest case you only need to surround JSP code with <pd4ml:transform> and </pd4ml:transform> tags.
The main PD4ML library pd4ml.jar includes a standalone GUI/command line tool PD4Browser, which can be activated with the command: java -jar pd4ml.jar [url] [output_file]
The tool auto-generates a property file pd4browser.properties after the first start. The file allows you to "fine-tune" PDF generation processes. The properties of the file correspond to PD4ML API calls/properties. The most important settings are the following:
"pageFormat" - physical target page format like A4, LETTER etc. This can be also given as dimensions in typographical points or millimeters.
"htmlWidth" - an analog of web browser frame width. The HTML is rendered respecting the width; the width is mapped to the width of the chosen pageFormat.
"pageInsets" are page margins. The actual HTML-to-PDF scale factor is calculated in the following manner: scale = (pageFormat.width - pageInsets.left - pageInsets.right) / htmlWidth
From a technical perspective there are 2 types of PD4ML software: PD4ML Library and PD4ML Library Pro (PD4ML Pro binary is a part of PD4ML Volume and Source Code distributions). The Pro version is a superset of the Standard version and adds the following features:
- TTF Embedding allows to add any type of fonts to the resulting document in addition to the basic PDF fonts of Std version: Serif, Sans-Serif, Monospaced
- Supportof national character sets. Std version is limited by Latin
- Autogeneration of TOC, multicolumn output, smart table split and some other features
PD4ML Java Library and PD4ML Java Library Pro are single licenses. A single license is valid for a group of developers or for a single desktop product title or for a single Web deployment or for a single Lotus Notes/Domino database (and all replicated copies of the database).
PD4ML Volume License and its extension PD4ML Source Code License allows you to deploy PD4ML libraries (PD4ML or PD4ML Pro) with your Web or desktop applications to an unlimited number of client computers or Web servers.
Due to the platform-independence of Java, PD4ML works well with a minimalistic wrapper code in PHP, Lotus, Coldfusion and Ruby environments.
PD4ML is available in a number of different license options which have the following features:
| Feature | PD4ML Java Library | PD4ML Java Library Pro | PD4ML Volume Source | PD4ML Source Code License |
| Java library for HTML 3.2 to PDF converting | X | X | X | X |
| Standalone tool for HTML 3.2 to PDF converting | X | X | X | X |
| Include images to PDF | X | X | X | X |
| Encrypt resulting PDF | X | X | X | X |
| Assign read/print permissions to PDF | X | X | X | X |
| Add headers/footers | X | X | X | X |
| HTML templates for headers/footers | X | X | X | |
| Custom JSP tags for easy PDF converting | X | X | X | X |
| Support for national character sets | X | X | X | |
| Embedding of TTF/Open Type fonts | X | X | X | |
| Table of Contents generation | X | X | X | |
| One year of email support and free updates | X | X | ||
| Product lifetime email support and free updates | X | X | ||
| Unlimited number of deployments | X | X | ||
| Access to source codes of PD4ML | X | |||
| Highest priority of issue processing and change requests implementation | X |
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