In this article we like to discuss on how to take screenshot of a portion of computer screen (Windows OS) at regular intervals automatically using freeware applications.
Screenshots of Full screen
To take screenshots of entire screen, there are a lot of applications. I suggest Fast Stone Capture v5.3 from here which is having a very small screen print. In addition, you can take screenshots of custom areas too with this application. It can also take screenshots of scrolling windows. The application size is only 1.06 MB and is portable (no installation required.). The following is the screenshot of the program.
If you want to take screenshots of entire screen automatically at intervals, I suggest auto screen capture from Sourceforge. You can get it from here. This is a small program (just 209 KB) but does a lot of things. This software is also portable. We can set the interval in hours/ minutes/ seconds/ milliseconds with this program. The program simultaneously records all the four windows screens (Don’t you know that in Windows OS you can have four screens?) and the active window separately.
You can either select a folder to save the screenshots or the program will create a folder images/screenshots in the program containing folder and store the screenshots there (default). Screenshots of all available screens will be saved in folders named 1 to 4 and active window in a folder named 5 in that folder. The following image is the screenshot of the program.
Screenshots of Portion of a screen at regular intervals
I noticed that Amazon.in has a page that describes 100 books to read in a lifetime. I wanted to make a list of the books with the image of the book. The images in the webpage could not be viewed as image if saved from the webpage. So I have to take screenshots for saving the images. I googled for a freeware software for taking screenshots of portion of screen at regular intervals but I could not find a freeware for taking screenshot of a portion of the screen. But I found a workaround with two freeware programs – the first one for taking screenshots automatically at intervals and other for cropping all these screenshots at once in the preferred dimensions.
The first program is same as the program mentioned above – Auto Screen Capture with which we record the entire screen automatically at regular intervals.
The second program will crop these images as you specify. This freeware program is called JPEGCrops and can be download from here. This is also a small program and requires no installation. You need to open all images (JPEG format only), select the cropping method, Select ‘Syncronise Crop’ and then ‘Crop all images’. You will get the cropped images in ‘Cropped’ folder in C:\Users\user\Cropped directory (replace user with your username in the computer).
Steps to create screenshot of portion of your screen automatically
Step 1: Open Auto Screen Capture application, set the intervals and click on ‘start capture’>> JPEG. Click on the arrow on the right side of ‘Start Capture’ and select JPEG. (Please dont forget to select the image type as JPEG as JPEG crops will recognise only JPEG images).
For my purpose, I set the interval as 3 seconds and scroll down the webpage periodically, kept each screen for 3 seconds so as to get the images at the same position in the screen.
Step 2: After all screens are captured, right click on the tray icon and select Stopcapture.
Step 3: Check the screenshots folder and delete the unnecessary screenshots.
Step 4: Open JPEGCrops and select screenshots by browsing to the folder containing the screenshots created using Auto Screen Capture. If you forgot to select the image type as JPEG while taking screenshots, don’t worry. Download FastStone Image viewer, another freeware, from here. It will help you batch convert the images to JPEG format.
Step 5: Select ‘Synchronise crops’ from Edit menu
Step 6: Select the dimension (or free if do not like to have any specific dimension) that you want to crop into from right click and ‘aspects’ menu
Step 7: Now click on the picture and select the first cropped image and then click on ‘crop all images’.
Check cropped folder to see the screenshots that you were looking for. If you want screenshots of other part of the screen, repeat steps 4-7.
Thank you for reading.
Have a nice day.