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Published byLesley Francis Modified over 8 years ago
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Alternate Media Workflow Strategies for PDF
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Why PDF? Portable document format (PDF) Reads the same on any computer Looks like the book Contains all the text Smaller than TIFFs Easy for publishers
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Types of PDF Documents Text-based – Text can be selected Graphical – Picture of text (i.e., a graphic) – Text cannot be selected Use text-select tool to tell the difference
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PDFs and Publishers Fairly easy for publishers – Usually even small publishers can create a PDF Most accurate format Will be complete – But watch out for teacher’s editions Look for format choice on request forms
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Requesting through ATPC Use the ATPC request form – www.atpc.net In notes field at bottom, request PDF If additional processing is required, send syllabus! Please note: atpcnet.net is old URL; new URL is atpc.net
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Security Issues PDF files can be locked in various ways Some files can be read but no text extracted Some files cannot be read Sometimes OmniPage and/or FineReader can OCR locked files Sometimes nothing can open the files
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Different Acrobats Adobe Reader 8 – Free – Useful for students who need minimal accessibility features – http://www.adobe.com/products/reader/ Adobe Acrobat Professional 8 – www.uscollegebuy.com $39 – Useful for alt media specialists – Extract text, create accessible PDFs, enabled Adobe Reader features
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Access with Acrobat Reader Reads aloud – But does not highlight or track Enlarges text – Nice reflow feature Changes text/background colors Text highlighting, sticky notes, and comments Access text-based PDFs
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Adobe Reader Reality Check As good as Kurzweil? – NO As good as PDF Aloud? – NO Appropriate as only assistive technology? – NO Nice as a free, widely available option? – YES
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Process with Acrobat Pro Cropping Enlargement for printing Tiling Combining Some text extraction Works with text-based PDF
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Processing Graphical PDFs Must use OCR program Use virtual printer with Kurzweil – Creates KESI files – Will not work with locked files Use OmniPage or FineReader – Sometimes work with locked files – OP handles tighter security than FineReader does – Nothing works on “armadillo wrappers”
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OCR Programs Treat the same as a TIFF Load image file Zone Create templates
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PDF Strengths Good format for large print – Cropping – Fit to page on large pages – Print sections on large pages (tiling) Adobe Reader has some nice features for free – Change colors – Reflow – Voicing Easy for most publishers to create
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PDF Weaknesses Not always fully accessible – Screen readers do not always like them – Reading order can be problematic May be graphics May have too much security
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Summary Source files vs. end-user files – Source files = for you to create alt media from – End-user files = alt media formats PDF – Consider PDFs as source files (files to process) that sometimes double as end- user files (for certain students with limited access issues)
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