Free Software - (Mostly for Windows PCs)

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For the Office
Microsoft Office 2010 will no longer be supported after October 2020 and they are pushing people to adopt the subscription model. If you don't like to rent for your software, why not go for a freebie instead?

Do you need a pdf reader? It depends on whether you want to edit pdfs (use Libre Office) or just read them. For most purposes, you can easily read pdf files in Windows10 with no need to install anything first. Another handy thing is that you can save most web pages to pdf very easily using the 'Print' option and just save to file as a pdf. That's if the web page had been formatted properly.

Key W = Windows, M = Mac, L = Linux.

Optical Character Recognition (OCR)
The police use Automatic Number Plate recognition (ANPR) systems to 'capture' vehicle number plates, which their computer (a 'PC'?) then checks up to see if the vehicle is insured or the driver disqualified, etc. That works by translating a camera view into machine-readable text as a limited form of OCR.

If you have a printer, it is highly likely that the installation disc or whatever has included an OCR app, such as Abbyy Finereader, an excellent OCR app which you normally would have to pay for. A good system would let you scan pages of a book and combine them into a single PDF file, with correct pagination. Other systems might only work with single photographs or scans which include printed text. The good part is that you don't have to pay for them.


PDF Tricks
1. Don't Install a PDF Reader
They are nearly always bloatware. You can create your own PDFs from other documents from such as Libre Office. Repeating from above, web browsers now seem to all display and print PDF files. Edge does a good job and you can 'Print' to file if you want to just save the pages of interest as a new PDF. It also reads out the text (narrator) if you want to do something else at the same time.

2. Shrinking the PDF
You find yourself with a large document such as Yorkshire Archaeological Journal - Volume 82 at Archive.org but you only want to keep part of it. You first download the PDF (right-click and 'save as') from the list and save it to your PC. Having completed the download, you double-click the saved file and it will probably open in Edge or another web browser, depending on what's installed on the computer.

The clever bit is to locate the section you found interesting, for example 'The Re-building of Cusworth Hall' which is pages 304 to 306, right-click the start page and, instead of printing it out' you choose to 'Print to File' as a new PDF but insert the page range '304 - 306.' Now you will have saved just that section as a new file without destroying the original. Useful, what?

3. Saving Pictures from PDF
Someone has sent you a PDF with embedded photos and you want to extract the photos. One simple method is to maximise the photo in 'Edge' or whatever is used to view the PDF then do a screen capture - Press the 'Prt Sc' (Print Screen) button on the keyboard. That saves a screengrab to the clipboard. You open up a simple graphics editor such as '3D paint' which comes with Windows, or I would use XnView. Now you crop the image to get rid of anything around the photo then save the image as something like a JPG or PNG.

Another way to save pictures from a PDF is a bit hit-and-miss. This was tested in Libre Office 6 but failed in Libre Office 7. The trick is to make the PDF editable to extract the picture. Open the file in Libre Office and, hopefully, you will be able to edit or move its component parts. It won't work with every document, especially if it is more than a few MegaBytes or if you used PDF Trick No.1 above which carves up the graphics. Find the photo of interest and drag a corner to maximise it on the page, then Control+C to save it to clipboard. Of course, if the document is a 'Word' file, you can simply open it in your usual editor, maximise the picture and clipboard it from there.


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