Believe it or not, PDF files have been the go-to format for contracts and forms of any type since 1993. And sure, they're easily shareable - but that's about it. When you need to edit or sign a document - and you will - that's when frustration can set in. Luckily, there are workarounds, and PDF Expert for Mac is one of the best out there.

This all-in-one piece of software hacks through all the stubborn aspects of any PDF, allowing you to edit any text, images or links in the document - and that's just for starters. It also allows you to easily fill out forms, redact sensitive pieces of info or annotate portions of a file. You can even merge multiple pages into a single file, then password-protect them or share them remotely across iPhone, iPad, and Mac. If you get even a couple of documents per year, it can save a ton of headaches.

Lifetime access to PDF Expert for Mac is available now for $54.99, more than 30% off the list price. Read the rest

It's 4/20! Smoke 'em if you got 'em - and if you haven't got 'em, check out this roundup of deep discounts on pipes and other accessories. They're all on sale, but you can take an extra discount off the final price courtesy of the Boing Boing store by using the online code 420SAVE.

Freeze Pipe

There's nothing like a nice, strong pull on your favorite pipe - until you get the inevitable throat burn. The Freeze Pipe alleviates that with a freezable glycerin coil that cools the smoke on the way in, delivering a smoothness comparable to much bigger water bongs. Originally priced at $120, the Freeze Pipe is now half off at $59.95.

Twisty Glass Blunt

Legions of smokers swear by the Twisty Glass, thanks to the smooth pull of its spiral design and easy setup. Just pack in your tobacco, twist the screw and light up. No rolling, no carb, no fuss. When you're finished, twist it back out again for easy cleanup. You can pick up the Twisty Glass Blunt now for $34.99 - 30% off the MSRP.

The Weed Deck

Think you know your herb? If there were a test for Cannabis 101, this casino-quality deck would be your flashcards. Each one contains trivia and history on everybody's favorite plant, with helpful illustrations throughout. You can get the Weed Deck for $13.50, a 15% discount.

Geeky Grinders

Prepare your favorite herbs with a touch of nerd flair with these miniature grinders, each one inspired by a different geek talisman. Read the rest

Ever wonder if you're cleaning your teeth well enough? If your last dentist visit has you getting a little more thorough about oral care, it might be time to save yourself some guesswork. A lot of electric toothbrushes promise deep cleaning, but there's a Platinum Sonic Toothbrush that has power plus the simple but effective innovation of a timer to make sure you're brushing for the right amount of time, every time.

And that's the least of the bells and whistles. It charges by USB, which makes it perfect for travel. Plus, the case has a UV sanitizer which kills up to 99% of bacteria on the brush head while it's charging. Turn the power on, and the Platinum Sonic vibrates at 40,000 brush strokes per minute, which not only loosens fine particles from the teeth but is great for the gums. And best of all, there's an Auto Timer that makes sure you're brushing for the ADA-recommended two minutes. It's like having a dentist on the room with you, minus the guilt.

The Platinum Sonic Toothbrush & USB Sanitizing Case are currently $49.99, a full 80% off the MSRP. Read the rest

The digital age is well and truly upon us, but let's not forget there's a load of free TV content floating literally over our heads. No, we're not talking about the internet. Signals from major broadcast networks are still gratis for anyone who can pick them up with an antenna. And before you envision those ugly metal "rabbit ears" above your TV set, get a load of the ANTOP Paper Thin 30-Mile AT-105 Indoor HDTV Antenna.

As advertised, it picks up signals within approximately 30 miles of the broadcast area, unaffected by windy or rainy days. That's shows from ABC, CBS, NBC, PBS, Fox, Univision and more, relayed with support for HD and Ultra 4K content. At a mere .02 inches thick, it comes with a kit for mounting discreetly indoors and is fully compatible with existing digital TVs and converter boxes.

Right now, the ANTOP Paper Thin 30-Mile AT-105 Indoor HDTV Antenna is more than 50% off at $16.99. Read the rest

Who said LEGO® had to be ground bound? With The Force Flyers DIY Building Block Fly 'n Drive Drone, you can turn LEGO® and other building-block creations into fully-functional flying machines. It's available now in the Boing Boing Store for $39.99.

This kit comes with everything you need for remote-controlled long distance flight, including a 6-axis gyroscope, a 2.4 GHz wireless transmitter, and extra rotors for when you inevitably crash. Its plastic frame is covered in studs that are compatible with most brick-building toys, so you can get creative with your quadcopter’s design. Once assembled, you can precisely pilot your flyer through all kinds of tight spaces with the bundled digital proportional controller.

Children of all ages will have fun learning about the physics of flight with this hands-on project. Pick up the Force Flyers DIY Building Block Fly 'n Drive Drone here for $39.99. Read the rest

When businesses need big cloud projects done right, they need experts in DevOps. For the uninitiated, that's shorthand for the framework that allows development and operations teams to work together toward the same goal - not as independent departments with their own agendas. There's an arsenal of software that has cropped up to help in the workflow, and the Complete DevOps E-Degree Bundle is the easiest way to learn them all.

The six-course package includes a big-picture primer on the concepts that make DevOps work, then dives right in to show you how to install and manage a Linux framework. From there, you'll learn how to monitor it with Nagios and link up remote servers like RedHat, CentOS, and Ubuntu. Two entire courses are dedicated to the essential pieces of the development pipeline, including Jenkins, Ansible and Chef. All in all, it's more than 80 hours of reference materials and lessons, leading to a career-building e-degree in DevOps.

Lifetime access to the Complete DevOps E-Degree Bundle is currently $25, more than 85% off the MSRP. Read the rest

Are you super organized? You're going to love the Genius Pack G4 and its seemingly limitless, well-placed compartments. Not that organized? You're still going to love this piece of luggage because it's so well thought out that it practically does the packing for you.

We've all tried to stuff a piece of carry-on so full that it practically becomes a black hole. That practice becomes almost effortless with the Genius Pack, which not only boasts a separate compartment for dirty clothes but an air valve to vacuum-seal the contents. And that's only for starters: This thing has labeled, tidy spaces for chargers, socks, toiletries - even an umbrella. If you still need more room, an accordion-like zipper space expands it by 25%, and you can tote your jacket or personal bag outside with a handy strap. Made of high-strength nylon, it's sturdy enough to handle whatever you stuff into it, and the 360-degree spinning wheels are a nice touch.

Right now, you can pick up the Genius Pack G4 Carry-On Spinner Case for $179 - a full 39% off the MSRP. Plus, as a special offer to Boing Boing readers, you can save an additional 15% off this suitcase when you use promo code SPRING15. Read the rest

If you're an entrepreneur, you're not just hungry for success. You're hungry for knowledge, the insights that can lead to bigger and better ideas and ways to implement them. That knowledge is out there in the bestselling biz books that have changed the game over the years. There's just one problem: In a fast-paced lifestyle, who has the time to read them?

That's where Readitfor.me comes in.

It's a reading service built specifically for people who need the big ideas boiled down into a compact presentation. In 12-minute animated videos and summaries, Readitfor.me gives you the big takeaways from bestselling, fact-packed books like The 7 Habits of Highly Effective People, To Sell is Human, Hooked, Steve Jobs, Leaders Eat Last and 10% Happier. The complete library has over 300 essential guidebooks for the business world, with more being added all the time.

You can get a one-year subscription to the Readitfor.me Standard Plan for $29 today - a full 87% off the list price. Read the rest

Countless research studies have proven what is incredibly obvious to anyone who has a favorite song: Music can have a profound effect on our mood. So why not put that science to work for more than just de-stressing your commute? That's the idea behind the Humm.ly Music Therapy App, a new tool that aims to make you more productive, creative and mindful.

Curated by actual music therapists and music producers, Humm.ly is more than just a killer playlist. Choose a situation in your daily life and the app pulls up a soundtrack scientifically engineered to fire up just the neurons you need, whether it's brainstorming, winding down after work or falling asleep. It even gamifies the process so you can stay on track with your journey toward mindfulness. It's about time an app took music seriously enough to harness its full potential, and Humm.ly is engineered to do just that.

Right now, you can get a lifetime subscription to the Humm.ly Music Therapy App for $39.99, more than 85% off the original price. Read the rest

There's an unimaginable amount of data out there on the web today, more than any IT team could possibly manage. That's the real, nuts-and-bolts purpose of machine learning: Enabling AI to do the heavy lifting, sifting through the data to find out what's important - and valuable. If you're looking to break into this field, there's a number of ways in, and the Complete Machine Learning A to Z Bundle covers most of them.

After an overview that allows you to understand AI and deep learning through the innovations of Siri and Tesla's self-driving cars, you'll learn the many ways it can be implemented. There are separate courses on how to create chatbots using Google DialogFlow or Amazon Lex, and another on how to build voice apps using Amazon's popular Alexa device. You'll get deep dives into the art and science of data analytics with Spark 2.x, plus walkthroughs on the framework of systems like ApacheMXNet and Pytorch.

Right now, lifetime access to the Complete Machine Learning A to Z Bundle is $25. Read the rest

We're well past the golden age of the internet, when you could surf where you liked without being sure that ad trackers or some other bot were hungrily following your trail of cookies - not to mention actual human hackers and other threats. Ever wish your virtual self had an invisibility cloak? A good virtual private network is the next best thing. And among VPNs, Nord VPN still stands out as one of the best.

This is still the well-supported VPN that earned an "Outstanding" rating from PCMag, among other accolades. With it, you can route your signal through one of over 3,500 remote servers worldwide, thereby foiling tracking algorithms and enabling you to bypass the browsing restrictions of whatever country you're in. The service includes double data encryption and automatic shutdown in case of a dropped connection. And best of all, Nord VPN maintains a strict no logs policy, meaning nobody records your browsing history - not even Nord VPN.

Get a three-year subscription to Nord VPN for $107.55 - a 75% discount off the list price. Read the rest

When it comes to website development, JavaScript is the language that underlies it all. If you want to learn that language well enough for a career, you'll need more than just a handbook to cover all the essential frameworks that work with it. That's where the Full Stack JavaScript Developer E-Degree Bundle comes in.

This online course package includes more than 55 hours of videos, lessons, and projects that cover the full scope of what JavaScript can do. For beginners, there are courses on HTML, HTML5, and CSS that give a firm foundation for the underpinnings of Java. From there, you'll get complete walkthroughs on JavaScript and it's latest syntax update, ES6. You'll learn how to build progressive web apps and take a deep dive into popular JavaScript frameworks like NodeJS, ExpressJS, React, Redux and more. You'll even get a bird's eye view on developing any web project with a primer on open source collaboration.

All 11 courses of the Full Stack JavaScript Developer E-Degree Bundle are on sale for $35 in the Boing Boing Store. Read the rest

By now, you've probably heard the buzz on CBD, or cannabidiol. It's a non-psychoactive compound found in cannabis plants that's rapidly gaining popularity not as a recreational drug, but for its therapeutic properties. Testimonials abound regarding its uses as a stress-reliever and sleep aid, not to mention its well-researched possibilities for pain management among cancer patients.

If you've never tried it, there's a suitably painless way to jump in: CBD Gummies.

What you get is a jar of 50-55 gummies, infused with 99.99% hemp isolate powder, delivering 500 mg of CBD in each container. Like most gummy treats, they're fat and gluten-free and are available as sour bears, apple rings or rainbow-colored strands. Take no more than 2 every 6 hours and see how they can combat your stress level or pain. The treats contain less than .3% THC, and purchasers must be 18 or older. It's also a good idea - as with any medication - to consult with your doctor before consuming and check your state laws regarding CBD before you buy.

500 mg of CBD Gummies are now available for $29.99 - 25% off the original MSRP. Read the rest

Learning a new language was never meant to be about rote memorization. If you want to speak in a different tongue, first and foremost you need to speak - and when possible, interact with other native speakers. But if you can't afford that trip abroad, the Mondly app offers plenty of interactivity on its own.

This language learning app was voted Editor's Choice in the category by Google Play and Best of 2016 in the App Store, with good reason. It offers a curriculum in one of 33 different languages that focus on conversation, and it does this by exposing you to chats between native speakers. You'll pick up phrases quickly through short, easily digestible lessons while Mondly fine-tunes your pronunciation through the latest speech recognition technology. You'll also get essential tools like a verb conjugator, and those with an Android phone can even practice naming objects IRL with the MondlyAR functionality.

A lifetime subscription in a language of your choice to Mondly is $39.99, over 80% off the list price. Read the rest

The one place you want your internet service to work flawlessly is your home - especially if you work there. Sadly, we all know that spotty Wi-Fi is all too common, even with the best package. If you've lost crucial projects or had trouble streaming movies, NetSpot Home can not only show you why and where these internet gremlins attack but how to kick them out.

It's a troubleshooting tool for your connection that goes through your wireless network with a fine-toothed comb, letting you see where the "dead zones" are in your house with a visual map. It can further analyze your coverage for any location and help you set up the best hotspot for your needs. You can then monitor your setup with accurate speed tests, and even set up multiple access points and organize them by SSID, vendor or security level. No matter what you've been running on, NetSpot Home can likely make it better.

Right now, a lifetime license to NetSpot Home is $19 - a 72% cut off the list price. Read the rest

Big companies need to manage big stacks of data, and the language they use to access and manipulate it is SQL. If you want to make a career of IT, you'll need to master SQL like a native tongue to get started in the lucrative field of database management. With more than 120 hours of lessons and examples, the Complete Microsoft & Oracle SQL Certification Bundle is the surest way to do it.

In 11 courses, this learning package covers everything you need to walk confidently into those server stacks in both Microsoft and Oracle platforms. You'll get a solid foundation in SQL, starting with a walkthrough doing basic queries and functions. Once you've mastered that, you'll quickly move on to learn the skills that set you apart from the IT herd: Developing data models and business intelligence infrastructure, designing and maintaining a database warehouse, safeguarding it against internal and external threats. You'll get prepared to take certification exams in all of the above and more by the time you complete the course package.

Right now, you can pick up the Complete Microsoft & Oracle SQL Certification Bundle for $39. Read the rest

Ever heard of Agile? If you're on the ground floor of any big corporate project, it's more than likely you have. Agile is the methodology that major companies use to tackle big projects. And if you're looking to make yourself invaluable, a certification in Agile is what you need to lead that project development team. Packed with info for any level of experience, the Agile Expert Project Management Bundle is a direct path to that know-how.

This online training course contains more than 50 hours of training and exercises, with a certification waiting for budding Agile practitioners at the end. It starts with a comprehensive primer on the overall Agile framework, plus the system known as Scrum that allows you to implement it by laying out group roles and targeting goals. From there, you'll be able to learn how additional methodologies such as Kanban and Lean fit into the overall scheme and get a bird's eye view of the whole process that will allow you to take any project across the finish line quickly and efficiently.

Pick up the Agile Expert Project Management Bundle for $39 today. Read the rest