It is necessary to implement a preview page for a multipage pdf file so that the original cannot be downloaded. And the content that will be displayed on the page with a watermark and is not acceptable for printing and scanning quality.

Those. in my understanding, you need to render everything in some kind of jpeg, overlay png and create a gallery.

Is there a simpler solution, without downloading the docks themselves to third-party servers?

  • my eyes> Ie. in my understanding, you need to render everything in some kind of jpeg, overlay png - strangeqargo

2 answers 2

Take some Zend_Pdf , change the quality, put watermark on the pages of the document, it may make sense to delete some pages of the document. On the browser side, any protection can be ignored, because the original is given to the browser, which means it can be downloaded.

    You can download everything that the browser sees and even everything that does not see especially pdf. since now there are a lot of downloaders that connect to resources directly (which are loaded on the webpage), and that you don’t overlay it anyway, you can still unload everything.

    • Can you download books from Google Books? - LEQADA
    • one
      And what is there to download? googlebookdownloader.codeplex.com - Null
    • there is also a universal poppy boot loader tulza.net Tulza Downloader free in it google books in pictures can be taken and deflated - Null
    • All these programs give only what the system allows you to see. TS asks about this method of protection, and you say that protection is not possible. So I gave an example. - LEQADA
    • Well, yes) as without 5 inserted cents))) - Null