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  • Generate or update a PDF to include an encrypted, hidden watermark?

    - by Dave Jarvis
    Background Using LaTeX to write a book. When a user purchases the book, the PDF will be generated automatically. Problem The PDF should have a watermark that includes the person's name and contact information. Question What software meets the following criteria: Applies encrypted, invisible watermarks to a PDF Open Source Platform independent (Linux, Windows) Fast (marks a 200 page PDF in under 1 second) Batch processing (exclusively command-line driven) Collusion-attack resistant Non-fragile (e.g., PDF - EPS - PDF still contains the watermark) Well documented (shows example usages) Ideas & Resources Some thoughts and findings: Natural language processing (NLP) watermarks. Apply steganography on a randomly selected image. http://openstego.sourceforge.net/cmdline.html The problem with NLP is that grammatical errors can be introduced. The problem with steganography is that the images are sourced from an image cache, and so recreating that cache with watermarked images will impart a delay when generating the PDF (I could just delete one image from the cache, but that's not an elegant solution). Thank you!

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  • Adobe Reader not loading form content

    - by wullxz
    We have an FDL file which is used to offer an online application possibility. The FDL is filled out and sent to a mailbox. When I open the received file, Adobe Reader starts, loads the document in Internet Explorer (had to change my default browser because it doesn't work in chrome - the customer uses IE as default) and displays a warning that Adobe Reader has blocked the connection to the server where the initial document is saved: I can then click on "Trust this document once" (translated by me!) or "Add this host to trusted hosts" (also translated by me!). The second option doesn't work at all. The first option works but is a little bit annoying. I looked into Adobe Readers options (Edit - "Voreinstellungen" in german / the last option - Security (advanced)) and found the possibility to add hosts, files and directories or allow Adobe Reader to use the "Trusted Websites" list from Internetoptions. When I add the website either to Trusted Websites or the trusted list in Adobe Readers options, the warning doesn't pop up but the content in the prefilled (by the applicant) input boxes of the document doesn't show up on Windows 7 but it does show up on Windows XP. This Screenshot shows the settings window described in the last paragraph. The big input box at the bottom normally holds the trusted files/directories/hosts list. System Information: Windows 7 Enterprise x64 Adobe Reader X multiple IE versions (mine is latest but there's also IE 7 or 8) How do I get Adobe Reader to load the content of the form? This behaviour can be reproduced on a PC. When opening an fdf from a command line the form fields are blank even though there is data in the fdf and the pdf is located in a mnaully entered trsuted folder. Steps to reproduce: Clean install a Windows 7 PC (or use a virtual box) Map a network drive to a shared folder with a subfolder e.g. c:\test\docs becomes m:\docs Set security permissions to allow full control to everyone Add an fdf and a matching pdf file in the subfolder Manually add m:\docs to each of the trusted folders in the trust manager registry settings Ensure that Enhanced Security is on Run a command line to open the fdf file Expected result: pdf is opened in Adobe Reader with form fields filled out with data Actual results: pdf is opened with blank fields 'Yellow bar' appears asking to add document to trusted locations It appears that Adobe Reader XI is ignoring the privileged locations entries in the registry. Adding the document via the 'yellow bar' adds the individual document, with the same folder, to the privileged locations but means that the process has to be repeated for every document that needs to be opened from the folder.

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  • doxilion document converter alternative

    - by Nrew
    Do you know of any alternative to doxilion document converter. because when I try to convert .doc files into .pdf. The images is removed and the output .pdf file will only contain text. Please not the online converter. Because I have slow internet.

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  • iPhoto printing PDFs sideways

    - by Marcelo Cantos
    When I print to PDF from iPhoto (7.1.5), my scans (which are all portrait) all end up sideways in the PDF file. I've searched high and low for some setting that will alter this. The only one that I could find that would plausibly affect this is the Layout menu item in the Print customisation view, but this has no effect. Even rotating the images doesn't change it. Why is iPhoto printing my PDFs sideways, and how do I get it to stop?

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  • WPF 3D - Need help writing conversion methods between 2D and 3D (Point3DToPoint and PointAndZToPoint

    - by DanM
    I'm new to WPF 3D, so I may just be missing something obvious, but how do I convert from 3D to 2D and (for a given z location) from 2D to 3D? Specifically, I need two conversion methods: Point3DToPoint - If I have an (x, y, z) coordinate in the 3D world, how do I determine the (x, y) coordinate on the projected 2D surface. Method signature: public Point Point3DToPoint(Point3D point3D) PointAndZToPoint3D - If I have an (x, y) coordinate on the projected 2D surface and a z location in the 3D world, how do I determine the intersecting (x, y, z) coordinate in the 3D world? Method signature: public Point3D PointAndZToPoint3D(Point point, double z) I'd like the 2D coordinate to be the location measured from the upper-left corner of Viewport3D and the 3D coordinate to be the location relative to the origin (0, 0, 0) of the 3D world. Note 1: I found this related question, but it only addresses conversion from 3D to 2D (not the reverse), and I'm not sure if the answers are up-to-date. Note 2: I'm currently using .NET 3.5, but if there are improvements in .NET 4.0 that would help me, please let me know.

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  • Is there a way to change the order of tabs in Foxit Reader?

    - by Harold
    In web browsers you can drag the tabs to change the order. But I can't do that in Foxit Reader (version 3.1.4.1125, using Windows Vista Home, Chinese Traditional) Example: I open 3 files: Page2.pdf Page3.pdf Page1.pdf which opens Foxit Reader with a tab for each file, in the order Page2.pdf Page3.pdf Page1.pdf Is there a way to change the order of the tabs to Page1.pdf Page2.pdf Page3.pdf ? This would really be helpful when you have many files open... TIA! Harold

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  • How to do a sample rate conversion in Windows (and OSX)

    - by Paperflyer
    I am about to write an audio file converter for my side job at the university. As part of this I would need sample rate conversion. However, my professor said that it would be pretty hard to write a sample rate converter that was both of good quality and fast. On my research on the subject, I found some functions in the OSX CoreAudio-framework, that could do a sample rate conversion (AudioConverter.h). After all, an OS has to have some facilities to do that for its own audio stack. Do you know a similar method for C/C++ and Windows, that are either part of the OS or open source? I am pretty sure that this function exists within DirectX Audio (XAudio2?), but I seem to be unable to find a reference to it in the MSDN library.

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  • openSSL tutorial not fully working - Can sign but cannot restore original file

    - by djechelon
    I'm writing, and testing, a little tutorial for my groupmates involved in an openSSL homework. We have a bunch of PDF files, I'm the CA and each one should send me a signed PDF for me to be verified. I've told them to do the following (and tried to do it by myself) Request and obtain a certificate (I'll skip this part) Create a MIME message with the PDF file in it makemime -c "text/pdf" -a "Content-Disposition: attachment; filename=”Elaborato.pdf" Elaborato.pdf > Elaborato.pdf.msg Sign with openSSL openssl smime -sign -in Elaborato.pdf.msg -out Elaborato.pdf.p7m -certfile ca.pem -certfile nomegruppo.crt -inkey nomegruppo.key -signer nomegruppo.crt Verify with openssl smime -verify -in Elaborato.pdf.p7m -out Elaborato-verified.msg -CAfile ca.pem -signer nomegruppo.crt Extract attachment with munpack Elaborato-verified.msg View with Acrobat Reader The problem is that even if I get a file that (from its binary content) resembles a PDF file my current Ubuntu PDF viewer doesn't read it. The XXXElaborato.pdf extracted by munpack is a little bit smaller than the original. What's the problem with this procedure? In theory, they should send me the signed S/MIME message and I should be able to read the PDF within it. Why can't I restore the original content of the PDF file?

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  • Conversion Fahrenheit to celsius programmatically

    - by Doom
    In my project, want to show the weather in fahrenheit first, then if the user wants clickes on conversion, needs to show the weather in celsius. My code is NSNumber *metric = [[NSUserDefaults standardUserDefaults] objectForKey:@"metric"]; NSLog(@"Metric is %@", metric); CGFloat aFloat = [speed floatValue]; CGFloat tFloat = [temperature floatValue]; CGFloat tempFloat = (tFloat-30)/2; NSNumber * p_Number = [NSNumber numberWithFloat:tempFloat]; //Convert mph to kmph if ([metric boolValue]) { [windValueLabel setText:[NSString stringWithFormat:@"%.2f kmph", aFloat * 1.6] ]; temperatureLabel.text = [NSString stringWithFormat:@"%@", p_Number]; } else{ [windValueLabel setText:[NSString stringWithFormat:@"%.2f mph", aFloat / 1.6]]; temperatureLabel.text = [NSString stringWithFormat:@"%@", temperature]; } When u start the app, its working and showing temperature in fahrenheit, but crashes at celsius man... is that the current conversion. help me out guys

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  • msbuild conversion tool to VS2010

    - by prosseek
    I got vcproj file from QMake (qmake -tp vc win32.pro), and when I run it with msbuild (msbuild for VS 2010), I get the following error. MSBUILD : error MSB4192: The project file ".\win32.vcproj" is in the ".vcproj" or ".dsp" file format , which MSBuild cannot build directly. Please convert the project by opening it in the Visual Studio IDE or running the conversion tool, or, for ".vcproj", use MSBuild to build the solution file conta ining the project instead. I'd like to run the conversion tool for getting VS2010 project file. What's the tool for it?

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  • Type casting Collections using Conversion Operators

    - by Vyas Bharghava
    The below code gives me User-defined conversion must convert to or from enclosing type, while snippet #2 doesn't... It seems that a user-defined conversion routine must convert to or from the class that contains the routine. What are my alternatives? Explicit operator as extension method? Anything else? public static explicit operator ObservableCollection<ViewModel>(ObservableCollection<Model> modelCollection) { var viewModelCollection = new ObservableCollection<ViewModel>(); foreach (var model in modelCollection) { viewModelCollection.Add(new ViewModel() { Model = model }); } return viewModelCollection; } Snippet #2 public static explicit operator ViewModel(Model model) { return new ViewModel() {Model = model}; } Thanks in advance!

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  • C++ conversion operator between types in other libraries

    - by Dave
    For convenience, I'd like to be able to cast between two types defined in other libraries. (Specifically, QString from the Qt library and UnicodeString from the ICU library.) Right now, I have created utility functions in a project namespace: namespace MyProject { const icu_44::UnicodeString ToUnicodeString(const QString& value); const QString ToQString(const icu_44::UnicodeString& value); } That's all well and good, but I'm wondering if there's a more elegant way. Ideally, I'd like to be able to convert between them using a cast operator. I do, however, want to retain the explicit nature of the conversion. An implicit conversion should not be possible. Is there a more elegant way to achieve this without modifying the source code of the libraries? Some operator overload syntax, perhaps?

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  • Mysterious different conversion to string[] of seemingly same input data

    - by Roman Kuzmin
    During investigation of some problem I found that the reason was unexpected different conversion to string[] of seemingly same input data. Namely, in the code below two commands both return the same two items File1.txt and File2.txt. But conversion to string[] gives different results, see the comments. Any ideas why is it? This might be a bug. If anybody also thinks so, I’ll submit it. But it would nice to understand what’s going on and avoid traps like that. # *** WARNING # *** Make sure you do not have anything in C:\TEMP\Test # *** The code creates C:\TEMP\Test with File1.txt, File2.txt # Make C:\TEMP\Test and two test files $null = mkdir C:\TEMP\Test -Force 1 | Set-Content C:\TEMP\Test\File1.txt 1 | Set-Content C:\TEMP\Test\File2.txt # This gets just file names [string[]](Get-ChildItem C:\TEMP\Test) # This gets full file paths [string[]](Get-ChildItem C:\TEMP\Test -Include *) # Output: # File1.txt # File2.txt # C:\TEMP\Test\File1.txt # C:\TEMP\Test\File2.txt

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  • IE won't load PDF in a window created with window.open

    - by Dean
    Here's the problem, which only occurs in Internet Explorer (IE). I have a page that has links to several different types of files. Links from these files execute a Javascript function that opens a new window and loads the specific file. This works great, unless the file I need to open in the new window is a PDF in which case the window is blank, even though the URL is in the address field. Refreshing that window using F5 doesn't help. However, if I put the cursor in the address field and press <enter> the PDF loads right up. This problem only occurs in IE. I have seen it in IE 7 and 8 and am using Adobe Acrobat Reader 9. In Firefox (PC and Mac) everything works perfectly. In Chrome (Mac), the PDF is downloaded. In Safari (Mac) it works. In Opera (Mac) it prompts me to open or save. Basically, everything probably works fine, except for IE. I have searched for similar problems and have seen some posts where it was suggested to adjust some of the Internet Options on IE. I have tried this but it doesn't help, and the problem wasn't exactly the same anyway. Here's the Javascript function I use to open the new window. function newwin(url,w,h) { win = window.open(url,"temp","width="+w+",height="+h+",menubar=yes,toolbar=yes,location=yes,status=yes,scrollbars=auto,resizable=yes"); win.focus(); } You can see that I pass in the URL as well as the height, h, and width, w, of the window. I've used a function like this for years and as far as I know have never had a problem. I call the newwin() function using this. <a href="javascript:newwin('/path/document.pdf',400,300)">document.pdf</a> (Yes, I know there are other, better ways than using inline JS, and I've even tried some of them because I've run out of things to try, but nothing works.) So, if anyone has an idea as to what might be causing this problem, I'd love to hear it.

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  • Sending Adobe PDF attachments from Adobe Reader (in Outlook 2003) takes too long

    - by White Island
    I have a customer who is using Outlook 2003 (Microsoft Online Services) and Adobe reader 9+. When they send a PDF from Adobe reader to Outlook (via the Send as attachment to e-mail feature in Adobe), it freezes for 30 seconds to 5 minutes before the new e-mail pops up with the PDF attachment. I'm pretty sure the issue is on the Outlook side of things, as I've tried Adobe reader 8 and Foxit Reader with the same results (Windows XP/7 doesn't seem to make a difference, either). I tried Outlook in safe mode on the first (Win7) machine I was working on, and the e-mail attachment worked a lot faster, but when I tried to replicate the results on another machine, one wouldn't go into safe mode, the other didn't seem to show a difference. In an effort to fix the problem in Outlook normal mode, I tried disabling all add-ins, Com add-in (Office Communicator is the only one), reading pane, Word 2003 as e-mail editor... but none of these seemed to address the issue. Does anyone have any other ideas? I need to get this resolved as soon as possible, and it doesn't seem practical to make them run in safe mode. :P

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  • Sending Adobe PDF attachments from Adobe Reader (in Outlook 2003) takes too long

    - by White Island
    I have a customer who is using Outlook 2003 (Microsoft Online Services) and Adobe reader 9+. When they send a PDF from Adobe reader to Outlook (via the Send as attachment to e-mail feature in Adobe), it freezes for 30 seconds to 5 minutes before the new e-mail pops up with the PDF attachment. I'm pretty sure the issue is on the Outlook side of things, as I've tried Adobe reader 8 and Foxit Reader with the same results (Windows XP/7 doesn't seem to make a difference, either). I tried Outlook in safe mode on the first (Win7) machine I was working on, and the e-mail attachment worked a lot faster, but when I tried to replicate the results on another machine, one wouldn't go into safe mode, the other didn't seem to show a difference. In an effort to fix the problem in Outlook normal mode, I tried disabling all add-ins, Com add-in (Office Communicator is the only one), reading pane, Word 2003 as e-mail editor... but none of these seemed to address the issue. Does anyone have any other ideas? I need to get this resolved as soon as possible, and it doesn't seem practical to make them run in safe mode. :P

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  • PDFs and Networked Printers

    - by Bart Silverstrim
    Weird issue. We have users printing to networked windows-shared printers (print server Win2003 sp2). Some users have been reporting recently that they can't print PDF documents to particular printers (two example printers are HP 2430 PCL 6 driver and 4250 PCL 6 driver). At first, we found that on many of these systems the "Everyone" object was added to the permissions for the root of the C: volume but had no permissions checked. We added modify privileges to it (these are Deep-Freeze systems, so modifications to these systems that we don't add as administrators won't matter) and they seemed to be able to print. Perhaps Acrobat Reader was writing a temp file for printing where users didn't have permission, we surmised, and made the change and moved on. Yesterday the user called in saying it's not working still. Looked at it; bring up a PDF, click Print and the reader app says that you have to install a printer. Look at the printers folder (Windows XP workstation), and it has printers installed. Print a test page, return to AcroReader, and it will print fine to that printer. The whole time web pages, MS Office documents, etc. print without issue to the same printers. Has anyone seen this issue with Acro Reader 9 and certain network printer drivers or shares involving HP printers? I'd post this to SuperUser but it seems to be associated with a networked printer issue, seems to affect subsets of users but may be more widespread and our users aren't reporting it to us assuming we just know about it, and I've not found rhyme or reason as to why it's affecting just PDF printing and particular printers. The print spoolers are all running on the workstations and print server without errors being logged so far, but I'm going through the logs now to see if I can find anything out of place.

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  • Adobe Reader XI doesn't allow the editing of fields in a document after it's been edited?

    - by leeand00
    One of the users at our company has a *.pdf file she received from the state of Pennsylvania. The version of Adobe Reader she is using is Adobe Reader XI 11.0.3. She uses this pdf file to send in a report. Her workflow goes like this: She makes a copy of the file. She opens the file and the file displays in purple at the top: Please fill out the following form. You can save data typed into this form. Highlight Existing Fields She fills in the specifics by entering values into the form fields. A few weeks later she returns to the same pdf document and can no longer edit the fields, instead she gets the following message: "This document enabled extended features in Adobe Reader. The document has been changed since it was created and use of extended features is no longer available. Please contact the author for the original version of this document." She's also running Windows 7 and I've been told that the issue was once fixed by setting compatibility mode on Adobe Reader XI to Windows XP SP3.

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  • Reformating xml document

    - by Joseph Reeves
    I have an xml document in the format below: <key>value</key> <key>value</key> <key>value</key> But need to convert it to the following: <tag k='key' v='value' /> <tag k='key' v='value' /> <tag k='key' v='value' /> The original xml file is roughly 20,000 lines long, so I'm keen to automate as much as possible! I've looked at xmlstarlet, but drew a blank with it. Presumably it would be a good place to start though? Help gratefully received, thanks.

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  • How do I reduce the screen and file size of a recorded video, plus convert to FLV?

    - by Volomike
    I have used gtk-recordMyDesktop to make a video as an OGV file using the default settings. I need to do 3 things: How can I reduce the screen resolution (height and width) so that it can fit into a smaller video size on my website? How can I pull out like every third frame so that the file size is not so large, yet not mess up the sound? Not all Windows IE users can view OGV files. How can I convert to FLV (or, as a fallback, MP4) so that I can share on my blog?

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