Congratulations, your computer is equipped with a PDF (Portable Document Format) reader! You should be able to view any of the PDF documents and forms. Each chapter should be included in the main document as a separate file. You can choose any name for the file, but we suggest adding a suffix. For example, converting a PDF to a Microsoft Word file (DOC and DOCX) lets you open the file not only in Word, but also in other document.


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This pdf file example is useful in CAD drawings, layered artwork, maps, multi-language documents etc. Basically, it consists of an Optional Content Properties Dictionary added to the document root.

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This dictionary contains an array of Optional Content Groups OCGseach describing a set of information and each of which may be individually displayed or suppressed, plus a set of Optional Content Configuration Dictionaries, which give the status Displayed or Suppressed of the given OCGs.

Security and signatures[ edit ] A PDF file may be encrypted for security, or digitally signed for authentication. The user password encrypts the file, while the owner password does not, instead relying on client software to respect these restrictions.

An owner password can easily be removed by software, pdf file example some free online services. Even without removing the password, most freeware or open source PDF readers ignore the permission "protections" and allow the user to print or make copy of excerpts of the text as if the document were not limited by password protection.

Not only can they restrict document access but they also reliably enforce permissions in ways that the standard security handler does not.

PDF 2.0 examples now available

The signature is used to validate that the permissions have been granted by a bona fide granting authority. For example, it can be used to allow a pdf file example Adobe Reader verifies that the signature uses a certificate from an Adobe-authorized certificate authority.

Any PDF application can use this same mechanism for its own purposes. Metadata[ edit ] PDF files can contain two types of metadata.


This is stored in the optional Info trailer of the file. A small set of fields is defined, and can be extended with additional text values if required.

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This method is deprecated in PDF 2. This allows metadata to be attached to any stream in the document, such as information pdf file example embedded illustrations, as well as the whole document attaching to the document catalogusing an extensible schema.

Usage restrictions and monitoring[ edit ] PDFs may be encrypted so that a password is needed to view or edit the contents. PDF files may also contain embedded DRM restrictions that provide further controls that limit copying, editing or printing.

These restrictions depend on the reader software to obey them, so the security they provide is limited. Default display settings[ edit ] PDF documents can contain display settings, including the page display layout and zoom level. Adobe Reader uses these settings to override the user's default settings when opening the document.

Intellectual property[ edit ] Anyone may create applications that can read and write PDF files without having to pay royalties to Adobe Systems ; Adobe holds patents to PDF, but licenses them for royalty-free use in developing software complying with its PDF specification.

Some software can automatically produce tagged PDFs, but this feature is not always enabled by default. Adding tags to older PDFs and those that are generated from scanned documents can present some challenges.

Often, the PDF document isn't printed, but is stored for the record. Here you will find two examples of invoices, one colorful pdf file example SVG images, and one more conservative. Figures and tables float to the top and bottom of pages, and wide content extend into margins.

Sample Documents

By using these formats, the newsletter can easily be published on the web and converter to PDF. JavaScript, multi-column layout, rotated text, CSS3 transforms, and page bleeds.


At the time, the descending "s" was pdf file example fashion and this reconstruction uses the text-replace property to recreate the original printed book Archive. Also, the document uses ligatures and the Table of Contents is generated with a script.


Product catalogs should be available on the web and in print.