problem with multiple digital signatures by deactivating the fast web view

Hello, I use acrobat pro 9.1 and have questions regarding a problem with several signatures on a pdf document.

Why I ask the question below? My job is to prepare PDFs for submission to the FDA. The FDA requires, among other things, the documents submitted electronically have quick view active web.

I am currently exploring ways to use digital signatures to sign pdf reports and always make sure they are spec FDA compliant. My question concerns a document which would have several signature fields. What I do, it is to create at least two signature fields in the doc and then save and optimize everything for fast web viewing. When I connect the first box and save, the file retains the fast web view state. Yet, when I apply and signatures past one, the file is then left for quick web display with no obvious way to turn it back on. I'm confused as to why it gets disabled after the second, and not just after even the first condition has been signed. And, of course, I would like to know if it is possible to maintain the fast web view and how to do it. I will gladly accept "tinker under the hood' suggestions file if they exist as well.

Please let me know if something is not clear or you would like more information.

Thanks for your time and your help.

~ Vlad

Hi Vlad,

Real Michael has got the right answer. A "Linearized" file (which is a file that has been optimized for fast Web view) aims to get the first page to display as soon as possible so that you can start playing without waiting for the rest of the file to download. Incidentally, the first designated page should not necessarily be page 0 (use of PDF has zero according to the pages counting system), but it usually is. The PDF specification, "the main objective of linearized PDF is optimized PDF documents viewing read-only. It is expected that the linearized PDF generated once and read many times. Incremental update is still permitted, but the PDF is is more linear and subsequently is treated as ordinary PDF. »

When you open a PDF file the first time that the backup process is a full 'save', it is the whole document is rewritten, so there is no more than two percent markers EOF (end-of-file) inside. The first expressions of folklore means what page to see the first and the second EOF designates the end of the rest of the file (so the browser knows when to stop downloading). However, when you add a second signature (or even longer) the file is saved as a "record growth" and new data is appended to the original file. It is that you can do a restore to the previous signed version and allows Acrobat/Reader verify the integrity of each signature regardless of any other signatures. It's the incremental save, breaking the linear optimization of the file.

Steve

Tags: Acrobat

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