Monthly Archives: April 2023

fixed : insert a picture into a PDF using Preview.app

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I need to fill out a PDF-form and include a picture also. I tried to do this using Preview.app but drag&drop didn’t work and copy&paste didn’t work either…

Is there any way to do this ?

Answer :

Yes, you can add a picture into a PDF using Preview.app. To do so, do this :

  • open the PDF in Preview.app
  • then, open the picture in a separate window in Preview.app
  • then, in the window with the picture, do this :
  • – select all ; by using the [CMD]+[A] key combo
  • – copy ; by using the [CMD]+[C] key combo
  • – paste ; by using the [CMD]+[V] key combo (when still in the window with the picture in it)
  • – resize the picture to about half-size ; by dragging the edges
  • – copy ; by using the [CMD]+[C] key combo
  • then, in the window with the PDF in it, do this :
  • – paste ; by using the [CMD]+[V] key combo
  • – resize the picture to the desired size ; by dragging the edges
  • – move to the desired location on the page ; by dragging the picture
  • then, save the PDF (under a different name if you like)

That’s it !

enjoy 😉

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fixed : calculate the number of days between 2 dates

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Question :

I want to integrate a formula in my spreadsheet (in Excel or Numbers) that calculates the number of days between 2 dates that I have in other cells on the spreadsheet.

How do I do that ?

Answer :

there are 2 formulas available to do this, choose the one that works best for you in Excel or Numbers :

formula =DUR2DAYS(enddate–startdate)+1

or

formula =DATEDIF(startdate, enddate, “D”)+1

NOTE : the “+1” in both these formulas is only needed if you want the number of days including both startdate and enddate !

That’s it !

enjoy 😉

fixed : convert .webp animation to animated .gif

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Question :

I just received a message with an animated picture in it, that I want to save on my Mac to maybe send it to someone else later on. I thought it would be an animated-GIF file, but it turns out to be a .webp-file when I save it to my Mac.

Is there a way to convert this .webp animation to an animated .gif ?

Answer :

Yes, and it is rather simple, just do this :

  • on your Mac, right-click on the icon of the .webp-file
  • in the popup-list that appears, choose “Get Info”
  • in the “Get Info” window that opens, goto “Name & Extension” and replace the “.webp” extension by “.gif”
  • and to make double-checking easier, uncheck “Hide Extension”
  • then, close the “Get Info” window (by clicking the X-marked red dot top left)
  • now, open the renamed file in Preview.app to check if it has multiple images inside
  • then, open the renamed file in your webbrowser to check if the animation runs smoothly

That’s it !

Note : this works if the original file inside the .webp-animation is an animated GIF, it’s not sure if this will work for any .webp-animation

enjoy 😉

fixed : create a poll or multiple-choice questionaire in WhatsApp

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Question :

I want to test the waters on some subject in a WhatsApp-group I’m in. Let’s say I want to know how everybody feels about doing something together or not. I’ve seen someone else post a polling questionnaire like that in another WhatsApp-group, and I want to do something similar…

How do I do that ?

Answer :

To create a poll (a questionnaire) in WhatsApp, do this :

  • make sure you have the latest version of WhatsApp installed on your iPhone
  • open WhatsApp and go to the group you want to post the poll in
  • click on the + (the Plus-sign) bottom left (next to the field where you normally type new messages)
  • in the popup list that opens, select “Poll”
  • in the “Create Poll” window that opens, at “Question” type the initial question for your poll/questionnaire
  • then, at “Options”, add the first multiple-choice answer you have in mind
  • then, just below, type the second multiple-choice answer
  • now, upon typing the second multiple-choice answer, you will see that an extra field will appear for an extra answer you have in mind
  • if you want to add a third (or fourth or fifth) multiple-choice answer, type it
  • so, when you have all multiple-choice answers typed, leave the bottom field empty (it will be marked with “Add” in grey)
  • now, if you want people to limit their response to only one answer/option, set the “Limit to only one choice” open (to the right) ; if not, leave it closed (to the left)
  • then click “Send” top right and your poll will be posted in your WhatApp-group
  • as soon als people start filling out your poll/questionaire, their face-icons/avatars will show up next the answer of their choice, so you can monitor the most and least popular answers

That’s it !

enjoy 😉