Mac OS X

The Preview application in OS X has an excellent option for capturing handwritten signatures and inserting them into PDF documents. This is great for signing forms, letters, and other items that require a signature. The process for doing so simply involves capturing a written signature with a Web cam, after which you can append them to any PDF document open in Preview.

Signatures that you associate with Preview in this manner are stored in an encrypted form, which is great for security but also means that Preview is the only program that can access them. Even though an inserted signature … Read more

MacFixIt Answers is a feature in which I answer Mac-related questions e-mailed in by our readers.

This week, readers wrote in with questions on how to best manage software updates for many computers on a network, the options for using the right-click in OS X, and concerns about the feasibility of corrupting a system through apparently normal use. I welcome views from readers, so if you have any suggestions or alternative approaches to these problems, please post them in the comments!

Question: Managing software updates for many computers on a network MacFixIt reader Beth asks:

Apple has tightened up security in its Safari Web browser following recent patches to Adobe's Flash technology.

As part of an update that went out yesterday, OS X will now block older and thus vulnerable versions of Flash, forcing users to update to the latest version if they wish to view Flash-based content. In order to block older versions of the software, Apple is using its Xprotect malware scanner, which is built into Mac OS X and can spot and quarantine known malware.

The move comes roughly a month after Apple began blocking older versions of Oracle-owned Java on … Read more

Regardless of whether you purchase it new, refurbished, or used, your Mac is likely a sizable investment that you might wish to keep running for as long as possible, not only because of the cost factor but also because of the time and effort it would take to migrate your data and workflow to a new system (even though Apple has made the latter quite easy if you have proper backups).

There are many ways your Mac can get damaged, become outdated, or otherwise experience greater wear and tear from use that can shorten its lifespan. In most cases these … Read more

Java cannot seem to get a break. Only a few days after patching the last zero-day vulnerability, two more exploits are being found that make use of the runtime. One, as noted by Kaspersky, is a recent exploit of the latest runtime's attempts to install a McRAT executable by overwriting memory in the JVM that will trigger the executable to run.

Once installed, the McRAT malware will attempt to contact command and control servers and copy itself into dll files in Windows systems.

This malware is specifically Windows-based; however, a second one outlined by Intego, is a Minecraft password-stealing … Read more

An apparent issue in the versions of OS X that are preinstalled on Macs shipping from the factory is causing headaches for some users, where they may run into problems if they try to reinstall OS X or restore from a backup.

As described by MacNN and MacTrast, the issue appears to happen because of a permissions problem that results in a compatibility error when the Mountain Lion installer is downloaded and run on an affected computer. Instead of installing as it should, users see a warning that states the current system is not compatible with Mountain Lion, with the … Read more

Legal forms, letters, and other documents are progressively migrating to digital media; however, the need for applying a signature to them is often still a requirement. While you can print these forms out, sign them and then fax, scan, or e-mail them after signing, another option is to apply a digitally saved version of your signature.

While one approach to doing this is to scan a document containing your signature and then crop it out and paste it in-line with your form, this requires that you keep the image of your signature readily available, and unless you have used transparencies, … Read more

When Apple updates its XProtect anti-malware system in OS X with new definitions, it often means a new or updated threat has been found for OS X.

Earlier this morning, Apple issued an update to XProtect, which now includes a new definition for a malware package called "OSX.eicar.com.i," that comes from Eicar.com. This update suggests the new definitions are for a novel malware package, but this is not so with this latest update.

"Eicar" stands for the European Institute for Computer Antivirus Research, which is a group that investigates malware and security … Read more

When you save items to a folder in the Finder, OS X will save this location in a "Recent Places" listing that is available the next time you save another document. This allows you to quickly access the folders you are currently using for your workflow, so you can better manage your projects without needing to manually set up temporary favorite folders or collect all of your documents in a generic location like the Desktop.

The recent items list will show the past five most recently accessed folders. While it has its conveniences there may be times when … Read more