I agree in principle, but there could be some technical issues that prevent it, as an encryption policy is basically a type of digital signature that is applied to the file.
On Mon, Jun 23, 2014 at 11:36 AM, John Milne <[email protected]> wrote: > Hi, > > Agreed, but there are different levels of security available on a PDF. > Simple security such as preventing changing a document, commenting it, or > form field fill in should not prevent a page count being returned without > calling the openProtection() method first. > > If you can view the document, then the page count should be available. To > my mind anyhow. > > Regards > > John > > -----Original Message----- > From: Gilad Denneboom [mailto:[email protected]] > Sent: 23 June 2014 10:14 > To: [email protected] > Subject: Re: Get page count from encrypted document > > The entire point of encryption is to prevent someone without the right > knowledge (the password) from gaining access to the contents of your file, > such as the number of pages in it. > > > On Mon, Jun 23, 2014 at 10:38 AM, John Milne <[email protected]> > wrote: > > > One last question for someone. > > Why do we need to decrypt the PDF to simply get the page count? > > > > Thanks > > > > John > > > > -----Original Message----- > > From: John Milne [mailto:[email protected]] > > Sent: 20 June 2014 14:43 > > To: [email protected] > > Subject: RE: Get page count from encrypted document > > > > Thanks Dave, > > > > That appears to do the trick. > > > > Best regards > > > > John > > > > -----Original Message----- > > From: Dave Smith [mailto:[email protected]] > > Sent: 20 June 2014 14:09 > > To: [email protected] > > Subject: Re: Get page count from encrypted document > > > > After you load the document > > > > if(document.isEncrypted()) > > { > > document.openProtection(new > > StandardDecryptionMaterial("")); > > } > > > > In the "" enter the password if required. > > > > > > > > > > On Fri, Jun 20, 2014 at 9:04 AM, Gilad Denneboom < > > [email protected]> > > wrote: > > > > > What kind of security? If it's a file-open password then you can't > > > get any information about it (at least in any Adobe apps), until you > > > provide the password. > > > > > > > > > On Fri, Jun 20, 2014 at 2:39 PM, John Milne <[email protected]> > > > wrote: > > > > > > > Hi, > > > > > > > > > > > > > > > > I have a number of PDF’s with various levels of security and need > > > > to be able to get a page count from them. > > > > > > > > The getNumberOfPages call fails to return a value with a document > > > > that is secured, while Adobe reader and windows preview are able > > > > to get the page count. > > > > > > > > > > > > > > > > [image: cid:[email protected]] > > > > > > > > > > > > > > > > PDDocument doc = PDDocument.load(new File(args[0])); > > > > > > > > int count = doc.getNumberOfPages(); > > > > > > > > > > > > > > > > Does anyone have any thoughts as to why and how I can get a page > count? > > > > > > > > > > > > > > > > Regards > > > > > > > > > > > > > > > > John > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [image: Description: Phlex-small-png.png] > > > > > > > > *John Milne*, Analyst Programmer > > > > *T:* +44 (0)1494 720420 *F*: +44 (0)1494 720430 > > > > > > > > *E:* [email protected] > > > > > > > > *W:*www.phlexglobal.com > > > > > > > > > > > > > > > > *Phlexglobal are worldwide leaders and specialists in the > > > > provision of local & global, technology enabled TMF document > > > > management solutions and support services.* > > > > > > > > The information in this E-mail and any attachments to it are > > > > confidential in every way and for the sole view of the addressee. > > > > If you have received it in error, please accept our apologies and > > > > delete > > it from your system. > > > > Thank you. | Any opinions expressed in this message or its > > > > attachments > > > are > > > > those of the author and are not necessarily those of Phlexglobal > > > > Ltd, who disclaim all responsibility and accept no liability for > > > > the consequences > > > of > > > > anyone acting on the information contained. > > > > > > > > Phlexglobal Ltd is a limited company registered in England and > > > > Wales > > > under > > > > company number 3544670 | VAT No. 108 216 051 | Registered address > > > > at Mandeville House, 62 The Broadway, Amersham, Bucks HP7 0HJ, UK > > > > > > > > > > > > > > > > > >
