fixed : quickly create a printable grayscale picture from a color photo using Preview.app

Question :

I often have color pictures (like photos) that I would like to print in grayscale, but I don’t have a grayscale printer.

What is the simplest way to do so ?

 

Answer :

Having a color printer is great, and the easiest way to print grayscale pictures is to just select the grayscale-option before printing :

  • open the picture (ussually¬†a .jpg) in Preview.app
  • in the top-bar, go to File and select¬†Print from the pulldown list ; or press the [CMD]+[P] key-combo on your keyboard
  • in the pulldown window that opens, click on Preview and select Graphics from the pulldown menu
  • then, at Color Mode, select “Grayscale” (instead of “Color”)
  • then click the Print-button and see what comes out of your printer
  • Note that if you would make a PDF now, that it’s not going to be a grayscale picture…

Sometimes this will do just fine, but often that isn’t enough, and you will need to do a few extra steps to get an acceptable result out of your printer :

  • open the picture (usually a .jpg) in Preview.app
  • click on the “Show Markup toolbar”-button (the circle with the pen-point in it, just left of the Search-bar top-right)
  • first, crop the image if needed :
    • then, click on the DashedSquare-icon (top-left) and select the “Rectangular Selection” option
    • on the picture, select the area you want to use (click the top-left of the envisioned area, than¬†botom-right) and the selection area will be displayed
    • if you need to, adjust the selection area by dragging it’s edges
    • then, in the top-bar, go to Tools and select Crop from the pulldown list ; or type the [CMD]+[K] key-combo on your keyboard
    • now the picture will be croped to the smaller ‘selection only’ size
  • then, in the top-bar,¬†go to Tools and select Adjust Color from the pulldown list ; or type the [CMD]+[ALT]+[C] key combo on your keyboard
  • in the AdjusColor-window that opens there is a ‘histogram’ (a picture with red/green/blue (a.k.a. RGB) graphs) with an AutoLevels-button, a list of 9 sliders and a ResetAll-button below it
  • attached to the base of the histogram, there are 3 slider-pointers (a.k.a. histogram-sliders)
  • set the middle histogram-slider lower (a little to the left)
  • then set the right histogram-slider lower (a little to the left)
  • then set the Exposure-slider higher (a little to the right)
  • set the Contrast-slider higher (a little to the right)
  • set the Sepia-slider in the middle
  • set the Sharpness-slider higher (a little to the right)
  • see if the (color) picture’s look is now clearer …if not go back and adjust the sliders until it is a brighter picture with more detail
  • then,¬†in the top-bar, go to File and select¬†Print from the pulldown list ; or press the [CMD]+[P] key-combo on your keyboard
  • in the pulldown window that opens, click on Preview and select Graphics from the pulldown menu
  • then, at Color Mode, select “Grayscale” (instead of “Color”)
  • then click the Print-button

that’s it !

Note :¬†if you would make a PDF now, that it’s going to be a color-picture, not a grayscale picture… if you need a grayscale picture digitally, you will need to use Photoshop ¬†or something similar…

Important extra note : once the picture is a PDF, you can no longer adjust the colors

enjoy ūüėČ

 

fixed : need to close Google Doc to prevent further adjustments

Question :

We have been working on an online Google Doc with several people and since we have reached the final version, I want to prevent anyone from making adjustments to the final version.

How do I do that ?

 

Answer :

If you want to close a Google Doc (or Google Sheet or Google Slide) to prevent additional editing, you should change the sharing setting of the Google Doc (or Google Sheet or Google Slide). Here’s how to :

  • go to http://docs.google.com and login
  • find the Google Doc (or Google Sheet or Google Slide) that you want to close ; select it from the list of documents
  • open the document
  • click the SHARE-button (the blue button, top-right)
  • then adjust the sharing from “anyone with the link can edit” to “anyone with the link can view” (or “anyone with a link can comment” if you still want people to be able to comment without actually editing the document)
  • Note : if you click the white Advanced-button, you will also get the options to “Prevent editors from changing access and adding new people” or “Disable options to download, print, and copy for commenters and viewers”
  • then, click the blue Done-button to fix your new sharing-setting
  • to check if your document’s sharing-setting is correct, hover your mouse-pointer over the blue SHARE-button and you will see the current sharing-setting

…that’s it !

enjoy ūüėČ

fixed : where to get the OSX 10.8 Mountain_Lion installer ?

Question :

I have a Mac that can be upgraded to a more recent version of OSX (or macOS), but I never did so I’m still on MacOSX 10.7 Lion.

Today I need to install an application that needs a more recent version of OSX/macOS to run, so I need to upgrade.

I can find various new versions of OSX/macOS available for free through the Mac App Store application (which I have since I had MacOSX 10.6 Snow_Leopard), but I get an error saying that those won’t run.

Where can I get an official version of OSX 10.8 Mountain_Lion (or newer) ?

Answer :

If you have either MacOSX 10.6 Snow_Leopard or MacOSX 10.7 Lion installed on your Mac, your only option to upgrade your operating system to a newer version is to upgrade to OSX 10.8 Mountain_Lion first.

Here’s how to :

  • purchase OSX 10.8 Mountain_Lion from the official Apple-website here : www.apple.com/shop/product/D6377/os-x-mountain-lion
  • then wait to receive 2 eMails ; one including a PDF and one that includes a password
  • open the Mac App Store application
  • go to Featured –> Quick Links –> Redeem –> Redemption Code
  • typ the 12-digit Redemption Code from PDF in your eMail
  • then, wait for the download to complete (view in Mac App Store –> Purchases)
  • then, unlock

That’s it – enjoy !

fixed : where to get an OSX driver for Griffin iMate USB to ADB adapter

Question :

I came across an old Mac gamepad that has an ADB (Apple Desktop Bus) connector and I was wondering if it would be possible to use it with my current Mac.

I also found a ‘Griffin iMate USB to ADB adapter’ that enables me to connect the gamepad to my USB-port. Unfortunately, when I connect it, only the joystick directions work, but not the buttons.

Is there anywhere I can get drivers for the Griffin iMate that would work for OSX ?

 

Answer :

Luckily, the WaybackMachine has a rather good backup off the original Griffin website, and most downloads still work. You can find it here :

Griffin iMate Software @WaybackMachine

This includes iMate-drivers for both MacOS9 and MacOSX (both support MacOSX Classic mode, which is MacOS9 running from inside MacOSX).

for MacOS9 driver version 2.7 and earlier versions are available

for MacOSX driver version 1.5.2 and 1.5.3beta are available

Since these are really old drivers, you will have to try if you can still run in your recent version of OSX / macOS.

If they don’t run, you might even be able to use the iMate OS X SDK (Software Development Kit) to create your own ūüėČ

For Windows PCs there are no drivers needed, but keyboards, mice with extended functions will only be partially supported.

enjoy !

fixed : reset password on QD520 IP-camera without a Windows-PC [Mac-only]

Question :

A friend donated a QD520 IP-securitycam¬†to me. It looks great and from what I’m reading, I should be able to get it working with Mac-software, but I when I try to¬†access the device in Safari, it asks for a password (that my friend couldn’t remember), so I can’t login…

There’s no reset button on the QD520, so I will need to reset the password with special software, but it turns out that that software is Windows-only, and I only have Macs…

What can I do ?

 

Answer :

You are completely right about the Windows-only software… but I managed to port the reset tool to Mac using WineBottler, and using that, you can reset the QD520 and it’s password back to factory settings.

After the reset, the QD520 will be back to these factory settings :

login = admin

password =               [ BLANK / NOTHING / EMPTY ]

IP (static) = 192.168.1.10

interface language = (simplified) Chinese ¬† ¬† [ yep, that’s a very uncomfy downside of resetting… unfortunately ]

 

Here’s how to reset the QD520 :

  • connect the QD520 to your network
  • use the free LANScan.app (or something similar) to find the QD520’s current IP address [ the LANScan app can be downloaded for FREE from the Mac App Store ]
  • download Winebottler here, and use it to run the¬†Windows-only version of the PasswordResetTool¬†you can get here or¬†in this Xmeye Camera Software bundle (or use Winebottler to create a Mac-compatible version of the QD520passwordresettool)
  • as the original Windows-version PasswordResetTool needs a Telnet connection to communicate with the QD520 IP-cam, you now have to enable Telnet (or Netcat to be more precise) to it’s IP address on your Mac as follows :
    • on your Mac, go to Applications –> Utilities –> Terminal.app
    • double-click on the icon to run Terminal.app
    • there you will see your username-with-a-dollar-sign-attached-to-it ; immediately after that, typ¬†this :
    • nc¬†xxx.xxx.xxx.xxx 23
    • so : N C space QD520-IP-address space 2 3 (in which 23 is the Telnet port number)
    • now you will see an ‘answer’ in the Terminal.app :
      • ????????LocalHost login:
  • when you see that text appear, doubleclick on the QD520passwordresettool to run it
  • when it’s open, at “Device IP”, fill in the QD520-IP-number, and click the “Reset” button
  • when you get the feedback message “Reset OK, Waiting for reboot your device, please!”, click the “OK” button
  • that’s it !
  • don’t forget to quit both the QD520passwordresettool and the Terminal.app

enjoy ūüėČ

NOTE #1 : as mentioned before, the QD520’s IP address will now be 192.168.1.10 and the interface will be in Chinese unfortunately, however, you will be able login now !¬†( using login = admin / password = [empty] )

NOTE #2 : unfortunately, there is no Mac-friendly solution to change the QD520’s settings like IP-address and Password just yet… for that, you will still need to use Internet Explorer for Windows with ActiveX and JAVA Runtime installed… [ we are working on a solution for that, but as ActiveX is not supported on Intel-Macs, that’s an extremely hard nut to crack and might even be too complicated… ]