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 😉

 

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fixed : print iOS note to a wireless non-AirPrint printer

Question :

I have some iCloud Notes on my iPhone and I would like to print them on my wireless printer (a Samsung CLP-365W wireless color laserprinter), but it’s not an AirPrint-supported printer…

…how do I do that ?

Answer :

First make sure your wireless printer is set-up for use with iOS (iPhone/iPad).

For instructions to do so with a Samsung CLP-365W, click here.

Then make sure you have the wireless printing app installed that works with your pinter, you will probably be able to find one in the iTunes App Store, either released by the printer manufacturer or a general one that is compatible with your printer.

For use with the Samsung CLP-365W, you will need the Samsung Mobile Print app.

Then follow these steps :

1- open “Notes” on your iPhone/ iPad

2- select the note you want to print

3- when the specific note is opened, double-tap on the screen and choose “Select All” from the popup, then select “Copy”

4- use the Menu-button to go back to the main screen and there, select the Mobile Print app, when it opens, select “Clipboard”

5- then select your wireless printer and click “Print”

…that’s it !

Enjoy !

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fixed : HP DeskJet 930c can’t print PDF

Question :

I got an eMail-attachment in PDF, and when I tried to print it from my OSX 10.8 “Mountain Lion” MacBookPro, a completely blank page came out of my HP DeskJet 930c…

And when I tried printing the entire mail (including the preview of the PDF), the eMail-bodytext got printed, but there was a blank spot where the PDF-preview should have been…

What can I do ?

Answer :

For some unknown reason, the HP DeskJet 930c seems to have problems printing PDFs from OSX 10.8 “Mountain Lion”. The only remedy seems to be to install Adobe Reader and print every PDF from there…

…to make printing from Adobe Reader a little easier for you (and something you will not forget when you do not print PDFs for some time), it would be good to set Adobe Reader as the preferred software to open any PDF on your Mac. To do so, do this :

– select any PDF-document’s icon on your Mac

– then press [CMD]+[I] on your keyboard

– in the ‘Get Info’ window that opens, go to the chapter called “Open with:”

– if the grey triangular arrow in front is pointing to the right, click on it to make it point downward and reveal the pulldown-menu that you can should choose “Adobe Reader” from

– after you’ve done that, make sure you also click the “Change All…” button

…now any PDF-document you get on your Mac or in your Mac will open up in Adobe Reader, and you can print it from there

That’s it !

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Enjoy !

fixed : this PDF will not print correctly

Question :

I’ve received an invoice from energy-provider Essent in PDF. In OSX’s Preview the PDF displays perfectly on-screen, but when printed, part of the text is messed up into unreadable text. I’ve called the Essent Help-desk and they told me that this is a Mac-problem that cannot be fixed…

…is that true and isn’t there any solution for this ?

Answer :

The Essent Helpdesk is wrong (I’m sorry…). The problem is that a non-standard font is used in the invoice for which a license of €500 is needed… (this actually is the FrescoSans font family…)

Even though Preview can’t properly print this font, Adobe Reader will…

So, download Adobe Reader (if you haven’t already done so) and open and print the invoice from there.

Simple as that !

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