How to free up your iPhone and iPad storage space by removing unwanted books

By Christian Zibreg on Feb 6, 2015

Our previous how-tos shared tips on saving storage space on your iPhone, iPod touch or iPad by removing photosvideos, songs and apps. And last week, we shared an excellent tip on clearing ‘Other’ storage occupied by Safari’s Reading List, app caches and temporary data.

With that in mind, you’d be surprised to learn that electronic books can take significant amount of storage space.

While a typical book found on the iBooks Store is about two megabytes in size, a textbook with enhanced features like audio and video will typically require anywhere between a few hundred megabytes to up to two gigabytes of storage, per textbook.

Now, if you’re anything like me, your devices are stuffed to the gills with multimedia-rich smart reads. In this tutorial, I’m going to show you how to identify the amount of on-device storage consumed by iBooks content, teach you how to reclaim storage space by removing books and PDFs you’ve read and share a few useful tips along the way that I bet you didn’t know about. Read More


Readdle launches PDF Office, a new productivity suite with subscription model

By Christian Zibreg on Dec 10, 2014

Ukrainian developer Readdle today added a new flagship application to its stable of productivity software for the iPad, PDF Office. The all-in-one mobile solution is suited for demanding users who need to produce PDF files on the go, from scratch, or edit existing documents using a bunch of powerful editing and annotation tools.

With PDF Office, you can create new PDFs, jot down notes, scan documents using your iPad’s camera, create and fill out forms, convert any file, picture or even a website into a PDF document, annotate and sign PDFs, collaborate on documents and more — all in the name of going completely paperless.

Based on a subscription model, PDF Office is available free of charge with subscriptions starting at $5 per month (annual subscription will cost you $40). Read More


The best PDF management apps for iPhone and iPad

By Lory Gil on Oct 19, 2014

Thanks to technological advancements like the iPhone and iPad, we no longer have to cut down as many trees in order to keep productivity going. With the features that many PDF readers have, you can download a document, sign it, and return it to the sender without having to print out a single piece of paper.

If your list of PDF files is growing by the minute, you might need a dedicated app for keeping them organized, while still allowing you the ability to annotate and edit. We’ve got a list of what we think are the best PDF management apps for iPhone and iPad that will let you edit, annotate, or even sign PDF documents. Read More


PDF Expert 5 and Documents 5 updated with iCloud Drive, Touch ID and other enhancements

By Christian Zibreg on Sep 28, 2014

Yesterday, Ukrainian developer Readdle released a pretty big update to its PDF Expert 5 and Documents 5, apps that let you edit, annotate and manage PDFs and other documents on your iPhone and iPad.

I wanted to share a few key improvements with you quickly because the app’s now a showcase example of how iOS 8 enables a whole new level of inter-app integration.

A free update to existing owners, PDF Expert 5.2 features a number of enhancements, including a few iOS 8 exclusives such as support for iCloud Drive document storage and Touch ID authentication to unlock the app instead of a regular passcode. Read More


Scanbot 2.0 brings iPad support and smart QR code scanner

By Christian Zibreg on Jun 12, 2014

Scanbot is an awesome PDF scanning utility that allows you to create high-quality PDF or JPEG scans with 200 dpi and higher. You can then upload the images to a number of cloud storage services, share them online and what not.

It’s an indispensable productivity tool for paperless office aficionados and good for just about anyone who needs to scan those receipts, contracts, print outs and other document types. Plus, it’s now available on the iPad.

The new Scanbot 2.0, available as a free update for those who’ve purchased it, is now a universal binary whose UI has been specifically tailored for both the tiny iPhone screen and the iPad’s larger canvas.

Filed as Germany-based Doo GmbH’s biggest release yet, the refreshed software also brings out a smart QR code scanner (more on that later), an improved grayscale filter and a host of other improvements and bug fixes… Read More


GoodReader adds new PDF editing features in paid update

By Christian Zibreg on May 8, 2014

Good.iWare’s popular document and file management iOS app, GoodReader, is one of the best applications to help solve the lack of a dedicated file management system on your iPhone, iPod touch and iPad devices.

GoodReader can synchronize your documents and files with a number of sources, be it your computer, another iOS device or a host of frequently used cloud-storage solutions.

It has a robust PDF management and editing capabilities that have been vastly enhanced in the latest version 4.0 update. Having decided to release GoodReader 4 as a brand new paid app, Good.iWare is now offering a time-limited 60 percent discount with an introductory price of $2.99Read More


Dropbox app updated with support for viewing PDF annotations

By Cody Lee on Dec 12, 2013

Good news for Dropbox users this afternoon. The cloud storage company has posted an update for its iOS client, bringing the app to version 3.0.2. The update includes a number of bug fixes, as well as the ability to view PDF annotations.

For those unfamiliar with the term, PDF annotations are things like notes, highlights and other edits made to a PDF document. And until now, users were not able to see these edits in Dropbox without using a 3rd party app or workaround… Read More


Readdle rolls out PDF Expert 5 with iCloud, shared folders, new Review mode and more

By Christian Zibreg on Dec 3, 2013

The Ukraine-based app maker Readdle today released a big update to its PDF management app, PDF Expert for iPad. The software makes reading, annotating or editing PDF documents on your iPad a snap, with advanced capabilities like highlighting and handwriting support, the ability to sign your PDFs digitally (useful for contracts and other legal documents), insert text and stamps and more.

PDF Expert can even merge multiple PDF documents into one so it’s much like the OS X Preview app feature-wise.

The fifth major iteration offers such enhancements as the new shared-folder capability, AirDrop sharing, a revamped file manager, iCloud storage and sync for your PDFs and lots more. The full breakdown is after the break… Read More


Firefox 19 lands with built-in PDF viewer

By Christian Zibreg on Feb 19, 2013

The Firefox browser by Mozilla, the non-profit organization, was once hailed as the biggest threat to Internet Explorer’s dominance, but boy do times change fast.

In just a few short years following its release, Google’s Chrome has become the most popular browser out there. And while Firefox certainly doesn’t lack a punch, it does fall behind Google’s baby in several aspects.

I’ve always loved Chrome’s built-in Adobe Flash player (because it doesn’t pollute the entire system with Adobe’s buggy plug-in). Another Chrome feature I love: a nice PDF viewer, also built-in. Starting today, a new major release of Firefox for Mac, Windows and Linux is available for download and it comes with a built-in HTML5-based PDF viewer, just like Chrome… Read More


‘PDF Printer for Safari’ adds support for Maps, soon for any app

By Mike Schnier on Jan 24, 2013

PDF Printer for Safari was a jailbreak tweak originally designed to allow users to ‘print’ from safari to PDF documents in order to neatly archive websites, but it seems the tweak has grown beyond its name.

The latest version of PDF Printer for Safari adds PrintKit integration, which is the native printing library on iOS. This library means ‘printed’ documents will save faster, users can now delete pages from the PDF on the fly, and the PDF Printer now works with the stock Maps app in iOS 5… Read More


‘Image Grabber’ allows you to save and share images from any website or PDF

By Jeff Benjamin on May 1, 2012

While mobile Safari is more than adequate for casual web surfing, it’s also very limited when it comes to performing more advanced functions.

For instance, if you were interested in viewing the source code behind one of your favorite websites, it’s impossible to do out of the box.

Even something as simple as viewing all of the images contained on a given page is out of reach. This is a function that’s easily accomplished with stock versions of desktop browsers.

Thankfully we have jailbreaking, and with it the tools to accomplish such simple, yet otherwise impossible tasks. Take Image Grabber for example — a jailbreak tweak that allows you to view all of the images on a given web site or PDF, and save, copy, or share them… Read More


Adobe updates iOS Reader with sticky notes, PDF forms, digital signing

By Christian Zibreg on Apr 10, 2012

Adobe ported its PDF reader app to the iOS platform last October, but the software’s been slow to catch on with users as iOS already sports basic built-in PDF support and Adobe’s app did little to build on this foundation with new capabilities.

An update that just went live on the App Store aims to rectify this with the ability to digitally sign PDF documents using your finger, comment stuff with sticky notes, underscore parts of the document with new highlight tools and more… Read More


Export Your Text Messages to a PDF File With Messages2PDF

By Cody Lee on Feb 3, 2012

Believe it or not, there are actually several reasons why a person would want to export their iPhone’s text messages to a shareable file. Maybe they need them as evidence in a criminal case, or want to save a memorable conversation.

But the iPhone doesn’t give you an easy way to save your text messages. Luckily, as usual, we have a jailbreak tweak to help us out with this problem. Introducing the new Messages2PDF application… Read More


Adobe Releases PDF Reader Application for iOS

By Cody Lee on Oct 17, 2011

Adobe and Apple don’t always see eye-to-eye. And the Cupertino company’s continuous omission of Adobe’s Flash technology from its iOS platform certainly hasn’t helped matters. But regardless of their history, the two remain frenemies.

In fact, Adobe just pushed out a version of its popular Reader application for the iOS platform. It allows you to view and interact with several types of PDF files including those protected by encryption and Adobe’s LiveCycle Rights Management… Read More


Fix iOS 4.3.3 Vulnerability with isslfix

By Guest Author on Aug 12, 2011

If you may recall, with the release of the long awaited JailbreakMe 3.0 for iOS 4.3.3, literally 10 days later Apple patched the clever PDF exploit in iOS 4.3.4. The security exploit could be triggered by viewing a maliciously crafted PDF file which may lead to an unexpected application termination or arbitrary code execution.

While the main reason Apple patched the exploit was to stop the use of JailbreakMe, it can also be a security concern. A few days later, Apple released another iOS software update, iOS 4.3.5. Apple released this update to patch the certificate validation vulnerability.

If you love customizing your iDevice to the fullest, you’ve probably already jailbroken, unless you didn’t update by accident or purchase your iDevice after Apple stopped signing iOS 4.3.3. Unfortunately, while not updating to the latest software may preserve your jailbreak, you may also be at risk from the same vulnerability… Read More


PDF Converter Turns Documents into PDFs on Your iPad

By Oliver Haslam on Jul 12, 2011

Wouldn’t it be nice to be able to take an existing Pages or Numbers document and convert it into a PDF right on our iPad, making it readable on just about any device you could possibly want to send it to?

Unfortunately, though, the iPad doesn’t currently support the ability to print to a PDF- a feature we half-expected Apple to add alongside the bungled release of AirPrint.

As an aside, does anyone actually use AirPrint? If you do, we’d love to hear why and when you make use of this little known and rarely used feature, in the comments!

Now, back on subject… Read More


Apple Plans to Fix JailbreakMe PDF Exploit in Next iOS Update

By Oliver Haslam on Jul 7, 2011

After a long wait, Comex released JailbreakMe 3.0. And now a huge number of iOS devices have already utilised the hack.

The jailbreaking method, which simply requires a user visit a website and press a button, is aimed at jaibreaking iOS devices running version 4.3.3, as well as being the first jailbreak available for Apple’s iPad 2.

With experts warning that the same method Comex uses could also be used in a malicious context, it was only a matter of time until Apple looked to plug the PDF exploit that the jailbreak relies on…. Read More


Germany Issues Warning Concerning Comex’s iOS PDF Exploit

By Cody Lee on Jul 7, 2011

JailbreakMe 3.0 has garnered some serious attention over the last 48 hours. The last report we heard was that the site had been visited over a million times, and the PDF exploit had been downloaded over 500,000 times.

The exploit must have also grabbed the attention of Germany’s Information Security team, because the group just issued a country-wide warning for all iOS products. The Mobile Safari vulnerability exposed by Comex in his new jailbreak tool has really made some folks nervous… Read More


PDF Patcher 2 Now in Cydia, Fixes JailbreakMe 3.0 Vulnerability

By Cody Lee on Jul 6, 2011

Now that you are finally able to hack Apple’s latest tablet with JailbreakMe 3.0, what’s your next move? For starters, you may want to consider closing that hole that Comex’s exploit used to break into your iDevice. Think about this:

JailbreakMe 3.0 is extremely easy to use. You simply navigate to a website on your iDevice, and within a few screen taps you’re jailbroken. But if Comex can design web software that can gain root-level access to your iDevice so easily, why couldn’t someone else? Read More


New PDF Exploit Uncovered By Comex in iOS, Return of JailbreakMe?

By Alex Heath on Jun 11, 2011

We’re calling it, folks: famed jailbreak hacker, Comex, has uncovered another PDF exploit in iOS that will allow for a userland jailbreak, ala JailbreakMe.

This is based off the above teaser image, which Comex just announced on his Twitter and is available for viewing on If our detective work is correct, we expect a new, untethered, userland jailbreak for iOS. Read More

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