Amyuni Tech

Sending files to and from organizations is part of our corporate communication. What originally began decades ago as simple file transfers between research and government campuses, has become part of business interactions around the world. FTP was the original workhorse that enabled us to send files, but as network capacities grew, so did our need to send larger and larger files. Soon FTP carried complex documents, large images, and even multimedia. As a result, file transferring softwares and email applications became popular alternatives to FTP, but their popularity also came with a price. Security issues similar to those that plagued FTP often found their way into many file transferring softwares. And even though email applications were more secure than their file transferring counterparts, they too experienced problems, especially concerning privacy. Inspired f... (more)

Creating Layered PDFs with Escape Calls to the PDF Converter Printer

Background information PDF Layers are called Optional Content within the PDF specifications. This is a feature that was added as of PDF-1.5 (Acrobat 6.) A layer is identified by an identifier and a title. Only the layer title is visible to the end-user of the PDF document. Layers can be structured as a tree or as a hierarchy of layers.  Here is a sample Optional Content object in a PDF: 9 0 obj <> endobj Each page using this layer should add the layer to its list of resources, for example: 6 0 obj <more)

Automating Preflight with PDF Analyzer

From Check List to PDF Options More than a decade ago Chuck Weger coined the term “preflight” to define the verification process of digital files prior to printing. Since then, this process or “check list” has materialized into integrated PDF options, plug-ins, and standalone products. Automated Batch Processing Unlike integrated options and plug-ins, PDF Analyzer can be installed on a server to perform the preflight of large numbers of documents as an automated batch process (Figure 1) without user interaction. Figure 1: Automated Preflight PDF Analyzer validates the structure ... (more)

Editing PDFs: What You See Is Not Always What You Get

Many have surely asked: “Why can't editing text in a PDF document be as simple as it is in a Word file?”. Actually, the PDF's inherent simplicity is the reason editing text can be challenging. Because despite the PDF's evolution, its core design and purpose, the PDF was and will continue to be, a final presentation document exchange format. Text: To a Viewer, It's Just Code The reason behind the PDF's text-editing elusiveness is the fact that words and sentences in a PDF document aren't really text. They are collections of objects commonly referred to as text elements. A text elem... (more)

Injecting Intelligence into PDFs with XMP (Part 2)

In a previous article, we reviewed the benefits and uses of PDF metadata. Specifically, we looked at the emergence of XMP metadata as a potential standardization for metadata frameworks and at how it can help PDF developers store, exchange, track, and retrieve information. In this article we will explore the injection of custom XMP metadata tags into existing PDF/A documents. PDF/A and XMP: Inevitable Convergence In 2001, developers recognized the need to add their own customized XMP metadata tags to PDF documents. They understood that by adding their own information, they could... (more)