PDF is a file format used to present and exchange documents reliably across operating systems. It combines elements of page description languages, font embedding/replacement, and structured storage. PDF files can be shared, viewed, printed by anyone using the free Adobe Reader software. While PDF files allow markup and annotation, they are generally not intended for extensive editing beyond rearranging existing text or adding basic annotations. Both free and proprietary software exist for creating, viewing, and otherwise working with PDF files.

1. PDF (Portable Document Format) By Raveesh S IKM Trainee NCSI, IISc

2. Content Introduction What is PDF? Why PDF? Acrobat Components Creating PDF Files Editing PDF Documents Advantages Free and Proprietary Software Conclusion

3. Introduction PDF is a file format that has captured all the elements of a printed document as an electronic image that you can view, navigate, print, or forward to someone else.

4. PDF files are created using Adobe Acrobat, Acrobat Capture, or similar products. To view and use the files, you need the free Acrobat Reader, which you can easily download. Once you've downloaded the Reader, it will start automatically whenever you want to look at a PDF file. It’s developed by Adobe Systems

5. PDF is standard for the secure and reliable distribution and exchange around the world. PDF is a universal file format that preserves the fonts, images, graphics, and layout of any source document

6. PDF is an open file format created by Adobe Systems in 1993 and is now being prepared for submission as an ISO standard.

7. The PDF file format has undergone several changes, generally as new versions of Adobe Acrobat have been released. There have been eight versions of PDF, 1.0 (1993), 1.1 (1994), 1.2 (1996), 1.3 (1999), 1.4 (2001), 1.5 (2003), 1.6 (2005), and 1.7 (2006). The format is not fully backward-compatible, and older reader software may not be able to open newer files

8. Technology used PDF is primarily the combination of three technologies: A sub-set of the PostScript page description programming language, for generating the layout and graphics. A font-embedding/replacement system to allow fonts to travel with the documents. A structured storage system to bundle these elements and any associated content into a single file, with data compression where appropriate.

9. PDF Can … Can be shared, viewed, and printed by anyone with free Adobe Reader¨ software can be read by any computer (Macintosh, Windows or UNIX) platform conflicts. A way of displaying documents in the form in which they will be print Can describe documents containing any combination of text, graphics, and images

10. Why PDF? readable by anyone with free Acrobat Reader platform and software independence high-visibility markup options for grading comments accessibility option via Access plugin and screen readers safe format, virus-free single file delivery of elaborate documents in a compact format, e.g. for slide presentations or web sites

11. Acrobat Components Adobe Reader (free): view/print PDF, copy text from PDF to word processor; includes web-browser plugin Acrobat (formerly known as Acrobat Exchange): Reader plus editing and annotation features, web-capture, scan-and-OCR tool, and ability to save, sign, and secure

12. Acrobat Distiller : high-quality printer and PS(post Script)-to-PDF converter; indispensable component of PDFmaker; includes the AdobePS printer driver PDFmaker : macros for Word and Power point to create PDF while preserving document structure and other features

13. Acrobat Catalog : creates index for the search tool PDFwriter : simple printer to make PDF from any application Paper Capture : plugin for Optical Character Recognition (OCR) within Acrobat.

14. PDF menu

15. Creating PDF Files From any application, simply print to pdf choose PDFwriter or Acrobat Distiller as printer PDFwriter printer options are set in print dialogue Distiller job options are set in the Distiller program In Word/Power point/Excel, use toolbar button to create PDF

16. Editing PDF Documents re-typing some text with the text- touchup tool move text or graphics— but only on a per-line basis! change font face, size, color for (part of) a line of text delete graphics with the object select tool insert a new line of text: cont…

17. cont… Insert new page Delete page Create Bookmark Delete Bookmark Create Hyperlink Rotate pages Change page number(1,2,3,…i,ii,iii…a,b,c…) Change Font Color

18. Advantages Smaller files : smaller the file, the quicker the transfer, 10 megabytes to 187 kilobytes (0.187 megabytes) Free " Reader " Software Cross-Platform Compatibility . Security vs Viral Infection Security vs. Changes PDF can contain hyperlinks

19. Free and open source Ghostscript – viewer, creator and converter GSPdf – viewer for GNUstep , based on Ghostscript iText – Java -based creator, editor and converter KPDF – KDE 's viewer; based on Xpdf. Multivalent – Java-based viewer OpenOffice .org – office suite, can export to PDF PDFBox – Java library PdfTeX – converter (from TeX ) Pdftk – creator, editor and converter (iText frontend) ReportLab – Python -based creator Scribus – creator Xpdf - PDF view for Xwindows

20. Proprietary Software Adobe Acrobat – Adobe 's official PDF creator, commercial Adobe LiveCycle PDF Generator – Adobe 's official SERVER SIDE PDF generator, commercial Adobe Reader – Adobe's official PDF reader, offered at no cost Foxit – viewer PDFNet SDK – PDF library for reading, writing, editing, printing and viewing PDFs RasterMaster – viewer and conversion toolkit txt2pdf – old textual reports to nice pdfs converter

22. Cont… Universally accepted file Format output and review format — not very editable! Can be annotated and digitally signed Can be secured against printing, changing, opening Can give link using Book mark and Hyperlink

23. References http://www.webopedia.com/ http://en.wikipedia.org/wiki/Portable_Document_Format http://www.adobe.com/ http://www.pdfonline.com/

24. THANK YOU