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>I want to put an old book on a CD using Acrobat. The type is fairly small, with serifs. If I scan the pages with a high-resolution scanner will Acrobat keep the high resolution, or is there an Acrobat limit? I'd like opinions before I buy a high-resolution scanner...maybe it would be too high to use Acrobat effectively. Acrobat does not have a limit, but Acrobat Capture does. There is a serious bug in Acrobat Capture. Images greater than 300 dpi are downsampled to 300 dpi in the PDF, and there is nothing you can do about it. In Acrobat (and in other applications), however, the images are not downsampled and you can easily convert 400 dpi or 600 dpi images to PDF, and these higher resolutions will be transferred to PDF and will take care of your small type. The filesize will be bigger with higher resolutions images, but you can reduce the size and even make them competitive with PDF Normal output by using JBIG2 compression, a new compression method available in Acrobat 6. You can find a scanner that does 400 dpi or 600 dpi images for under $100. You pay more for speed and automatic paper handling, but not for quality, generally. A document scanner is an office device similar to a document photocopier, and not much more complex. A good basic investment for the office, in my opinion. For optimium quality and speed with high-resolution scanned page images, consider using the DjVu format (www.planetdjvu.com). Try it out using the Any2DjVu online conversion server found there. DjVu also makes it effective to scan and convert your book in color or grayscale. An excellent alternative to Acrobat for doing the OCR is ABBYY FineReader desktop, which can output searchable-image PDF. A trial download is available and you can even do your initial book for free within the trial. We use the ABBYY OCR engine in our enterprise conversion product, PDFPublish. Jim Rile www.searchpdf.com www.planetdjvu.com To change your subscription: http://www.pdfzone.com/discussions/lists-pdf.html
