i have some pdf files which i'd like to upload on my association site thus i'd like them not to be able to download it as it may content some slightly sensitive information .
So ok they could ctrl+c but that would reduce the spreading of the information not to have them locally
php/js w/e
thanks
quoted answer from a similar question, if you' re using Adobe pdf viewer:
You can NOT prevent users from saving ANY TYPE of document from the web - PDF, HTML, JPEG, etc. It's a "feature" of the web.
What you CAN DO is prevent users from being able to use the PDF once it hits their own disk. To do this, you use powerful Digital Rights Management solutions...:
https://forums.adobe.com/message/5158866
Related
I want to calculate number of pages in a PDF file while uploading to my application by Javascript in Client Side. I want some help for this. I Google this topic but I couldn't get any appropriate solution.
If you are uploading PDF file to the server anyway then it is better to do this on the server-side, there are lot of options depending what is your target platform).
For example, you may use the open source Ghostscript to count total number of pages.
I have a client that wants to store large PDFs (>700MB) on SharePoint 2013. The problem is that viewing the PDF is currently requiring the entire PDF to be download before displaying the first page. I need the browser to display each page of the PDF as it downloads, a feature I believe Adobe calls "Fast Web View" or "Byte Streaming". Here is what I know:
"Fast Web View" is enabled on the PDF document in the Document Properties window.
I can verify that the PDF is "Linearized" by reading the ASCII content.
I have checked the PDF reading options from the PDF Accessibility.
The client has SharePoint 2013 on premise installed.
SharePoint's File Handling is set to permissive.
I have verified PDF is an AllowedInlinedownedMinme type of the Web Application.
Anything else I should check or configure?
It is not enough if the PDF files are linearized (technical term in PDF parlance) or optimized for fast web view (marketing term for that feature).
There need to be two conditions met before taking advantage of fast web view working for the end user:
The PDF viewer needs to be able to make use of the linearized/optimized PDF file features.
The PDF serving remote host (in this case SharePoint) needs to be properly configured to honor 'byte range requests' by the viewer, so downloading chunks of the PDF file may be delivered "out of order".
However,...
...I do not know if SharePoint servers in general do support the second requirement;
...if SharePoint is not the problem, you may want to check which PDF viewer is actually in use in that environment (test it with Adobe Reader -- that one takes advantage of linearized PDF features for sure).
See also this answer to a question from today, which gives a few more technical details:
How are PDF files able to be partially displayed while downloading?
A co-worker identified the problem after comparing the download from SharePoint to that of a working site using WireShark. The SharePoint site didn't include "Byte ranging" in the response headers. In order to enable that feature in SharePoint, you have to enable BlobCache. Beware, BlobCache is not supported in SharePoint foundations.
I would like to know if it's possible to view a Google Spreadsheet Doc as a PDF without first manually converting it as a PDF? I don't want to share a link directly to the spreadsheet, I want to share a link to a PDF version of it which ends up looking better (in Print View rather than Spreadsheet Document View)
I know I can Print > Save as PDF, then download to local machine, then upload and save somewhere on my server. But is there is a way to be able to view the spreadsheet as a PDF.
I have Google'd this and found nothing. The best I could come up with is the Google Document Viewer (https://docs.google.com/viewer) but that does not seem to give mt the option I am looking for. Further, I do not want to install any Chrome plugins, etc. because I want to be able to share a link to the PDF with people but not have to have them install a plugin to see the doc.
Unfortunately, what you are trying to do and the way you are trying to do it is not a capability within Google Docs. Sorry.
I think the best way is to use Google Drive API to write own script that will do this job. I mean:
You have a web server
Write a simple method in any web technology, such as PHP, Python, Java, C#, whatever you like and your server is able to serve. This method is connected to the google drive through it's API to your account, knows which spreadsheet to take care of and how to understand the columns. This spread should be parsed to HTML and with some popular tool (proper for your programming language or server's operating system) you create the PDF. The method should create HTTP response with header type: application/pdf.
You provide interested people with the link under which your method is available.
I guess this reference should help you to use Google API:
How to download the resources:
https://developers.google.com/drive/web/manage-downloads
How to convert (i.e. to PDF) and open the resources in your own application:
https://developers.google.com/drive/web/integrate-open#open_and_convert_google_docs_in_your_app
I hope this helps.
I need to embed some PDF documents into a website. The last time I did this, I used a jQuery lightbox to popup an iFrame with the PDF document as the URL. The client's PDF viewer would then take care of the rest.
Apparently though, that was a bit buggy on some other peoples browsers. I guess it was due to the large PDF file sizes and the effort it took for their computers to fire up Adobe.
So I'm after ideas on how to go about this. How do you guys embed your PDF's into websites? Or do you just stick to adding a download link?
I often use scribd to solve this issue.
You have to upload your document (can be PDF, DOC or something else) to your scribd account and the service makes it possible to view this (pdf) document in a flash environment (perfectly embedabble with lightbox).
For this solution, a third party service (scribd) is required for your documents, but with their API it's possible to include all scribd functionality in your own website.
We have used Docuter
They let you embed and track
I've used Google Docs in Flash: http://trajctrl.tyblu.ca/?page_id=2
It's a bit buggy, but I find it works if you wiggle the image a bit - ie: zoom, click, etc. Download link is nearby just in case, too. Not exactly sure how it was done, as its a Wordpress plugin (Google Doc Embedder), but I imagine Google has an API somewhere.
I am exporting a document as a PDF. It is kept on a publicly accessibly website so that any users can download and read it. Now I want to track this. e.g. "How many times the PDF got opened."
Note that my question is not to track while I download, we need to track when the PDF is opened. Is there any kind of script that is invoked when the PDF is opened so that Adobe Acrobat Reader sends the details to my server?
These are the details I would like:
IP
Date/Time
Possbilly GEO Location.
Yes, you can probably do this. PDF includes a Javascript API, which some (but not all) PDF readers implement. I'm only certain of Acrobat and Foxit Reader doing this, and it can be turned off in both, for security and privacy reasons. That said, it's probably your best shot.
I glanced through the Javascript for Acrobat API Reference, and it looks like you could register for the "Page/Open" event (page 368 in my copy), and on receiving the first one of those, make a Net.HTTP call (page 548) to a web server you're running. That will get you the date/time and the public IP of the client reading the document, from which you can get a geolocation using a service like GeoIP.
I'm not sure this is possible. Although PDF can execute Javascript, reader software is naturally paranoid about malware being embedded in "benign" documents, so the execution context is quite restricted, with warnings shown about possible dangerous activity.
See previous SO question Can my PDF ping my server when it is opened?