TCPDF Open-source PDF-reader built in PHP
FPDF Combine with TCPDF above to create a PDF-writer using PHP
SetAssign Not open-source but this company offers both free and paid libraries that combine with the libraries above to allow PDF encryption / decryption using PHP.- The paid versions support more complex ciphers and I swear by them personally


Not sure if you meant desktop software or...

Exactly how does "two Ethernet ports" and "a USB port" translate into "a ton of I/O to connect anything"?

What is this, 1992? I can buy a 16-port gigabit router on eBay for $50 and flash it with whatever WRT variant I want.

- ZOMG LEDs, it must be awesome

"To date, no known flaws have been found against DES" : Er, differential calculus? Why do you think we created Triple-DES? Because we like things in threes? Supposedly the NSA made it more difficult to use differential calculus against DES by changing the S-Box permutations but it is still possible.

There was a time when the NSA had integrity....

What if I don't want to save my changes?

"You can use the 'undo' command they say..."

Yes but the undo command isn't persistent between applications, much less a power failure.

You haven't solved anything, you've merely shifted the problem.

Wait, what? This already exists, no? (custom mods aside). It's called Steam

You realize that up until roughly two years ago (in the US at least) the majority of people who identified themselves as "libertarians" were left-wing hippies from Vermont who embraced social contracts but wanted the government out of their personal affairs, pot gardens and gun racks? It wasn't until the "Tea Party" under right-wing funding and Carl Rove style propaganda was the term "libertarian" bastardized to enable right-wing nut jobs to hide under the guise of a small government agenda. I am a libertarian and I vote Democrat; not because they are equal but because if you go by historical facts and numbers, the Democrats have consistently been the party of fiscal responsibility since the 1960's. You're not crazy, the two groups are far more agreeable than you think. Is it off topic? I blame Microsoft.

You realize that up until roughly two years ago (in the US at least) the majority of people who identified themselves as "libertarians" were left-wing hippies from Vermont who embraced social contracts but wanted the government out of their personal affairs, pot gardens and gun racks? It wasn't until the "Tea Party" under right-wing funding and Carl Rove style propaganda was the term "libertarian" bastardized to enable right-wing nut jobs to hide under the guise of a small government agenda. I am a libertarian and I vote Democrat; not because they are equal but because if you go by historical facts and numbers, the Democrats have consistently been the party of fiscal responsibility since the 1960's.

You're not crazy, the two groups are far more agreeable than you think.

Is it off topic? I blame Microsoft.

Probably not. Keep Hydrofracking! We need more money [cough] I mean jobs!

Bill Binney Interview on Real Time with Bill Maher

Because you fired the one guy who had your answer.

And what happens when I need to tweak the virtual host settings or tune the database to better meet the demands of my specific application? You want me to f-over every other application running on the production server?

Screw you, man. Just wack off a dedicated VPS chunk and put it behind whatever paranoid tin-foil hat firewall sandbox you want. I don't want to have to open a support ticket and wait two hours every time I need to check the logs on my application server.

- Senior Developer

Sadly a lot of PDF printers will retain javascript code even if you print it and re-assemble it back into a PDF. The problem lies in the fact that Adobe allows javascript to be embedded inside image objects and compressed blocks of PDF binary. It's not as simple as opening the file and stripping out anything that starts with <script>. Code can be fired on almost any user event and it can be attached to almost any high-level object. It's not impossible to create a scrubber but it's a lot more complicated than you might think.

I spent the better part of a week attempting to create a PDF scrubber at my office for this same reason. We had become victim to highly targeted attacks from PDF sources. I wrote a scrubber in PHP using an open-source PDF parser and a series of regular expressions to strip out any javascript. At the end of the day, I came very close to a working solution but I ran into issues with encrypted PDF's.

The project was shelved in favor of making users open all external PDF's on a virtual server that was hardened and re-imaged every evening to prevent any malicious code from running rampant. That's the simplest solution.

Slashdot's User Interface Design Department

Agreed. You may not always need a math background depending on what you decide to do. I have a CS and Applied math degree and I worked in finance for 5 years where the math background was an invaluable tool that helped me excel where my coworkers without it did not. For other jobs I've had developing apps and UI's for start-ups, it rarely came up; however, whether you use the math or not on the job there will always be fundamental math quizzes during technical job interviews and having a higher understanding of mathematics will always help you in that regard.

Also if you ever develop a large-scale database or system, mathematical optimization will always come into play in ways you never thought it would.

If they were true to their motto they should have dropped the project and donated their funding to a children's hospital 10 years ago.