
If you’re viewing a PDF and find an image you’d like to reuse, then extracting it is usually easy enough: just right-click the picture, select Copy, and it’ll be sent to the clipboard, ready for pasting wherever you need.
This approach isn’t exactly convenient if you want to extract a large number of images, though. And it may not work with some PDF files, or other file and document types. In situations like these, what you really need is a more automated approach, a program which can extract the JPEGs from almost anything – and that’s exactly what deJPEG claims to do.
The program is compact, portable and extremely straightforward. Just point it at your document, click “Analyze”, and the program will scan through every byte of the source file, looking for JPEG-like structures, and saving anything it finds as separate files.
The best part of this approach is that it’s not relying on any knowledge of file formats. DeJPEG doesn’t care whether the target is a PDF file, a spreadsheet, a database or anything else; whatever you give the program, it does precisely the same thing, just searching for and extracting any embedded JPEGs. And so it stands at least a chance of working with most file types (and won’t break because there’s some minor format change, either).
But this lack of specific format support also leads to problems. In particular, if the content of your target is compressed (as with Office documents, say) then deJPEG isn’t going to notice that. It’ll scan the file as it is, rather than reading the decompressed stream, and so will miss any JPEGs it might contain.
DeJPEG’s interface is also rather more basic than we’d like. You can’t define an output folder, for instance – any extracted JPEGs are automatically saved to the same folder as the source.
Does it work, though? We had some odd failures; pointing the program at a few documents delivered oddly distorted images, others extracted files didn’t appear to be regular JPEGs at all. But in the majority of our tests deJPEG worked perfectly, sometimes extracting hundreds of images in just a few seconds.
We can’t definitively say deJPEG will work for you, then – it all depends on the source files. But if this kind of application could save you time, then it’s certainly worth a try. Go grab a copy, check it out on your own documents.
Deleting files on a PC is normally very easy. But sometimes, just occasionally, Windows will tell you that it can’t help because the file is “in use”. And that can quickly become very frustrating, especially if you can’t see why the file is open, or it’s something you really need to delete (a malware component, say).
But whatever you’re doing, it’s worth keeping in mind that this is a very risky business. If an application thinks it has a file open, but you’ve just erased it, then there’s no way to tell what might happen next. Crashes, lockups, file corruption, maybe nothing — it all depends on your individual setup, and how that program reacts.

If you’re worried about your PC’s RAM or CPU usage, then installing a system monitor can sometimes be useful. This will usually give you an on-screen display indicating when there’s a high demand for your system’s resources, so alerting you to potential problems as soon as they happen, and perhaps helping you to figure out the cause.
From docks to desktop gadgets, the Start menu to the Start screen, there are many ways to launch applications on your PC. But most of these are quite bulky, giving you a new interface to explore, and perhaps tying up valuable screen real estate.
When you need to distribute a particular set of images – or perhaps reconstruct some scanned pages into a digital version of the original document – then being able to combine those JPGs into a single PDF can be very useful. There are commercial tools which will handle this for you, but if your needs are simple then there’s no need to spend big money; the free (for personal use)
Google Fonts is an excellent resource for web designers, with hundreds of top quality open source fonts freely available for anyone to use.
Launch a program, collect an email, visit a website — just about everything you do on a PC results in some kind of change to the files on your PC. And normally the low-level details of this won’t interest you in the slightest, but there will be occasional exceptions.
Your PC is packed with applications, and you need to be able to launch them at speed. So of course you might start by creating a few shortcuts, and either dropping them on your desktop, and pinning them to the taskbar. It’s simple, and straightforward – but of course it can also quickly become very messy.
USB keys are compact, highly portable and a very convenient way to store and transfer information.


While the ability to capture and share an image of your screen is extremely useful, it’s not exactly an area where Windows has excelled. Under DOS pressing PrtSc sent an image of your screen to the printer; under Windows 3.x the grab was copied to the clipboard; after more than 20 years, Windows 8 added the ability to save an image by pressing Win+PrtSc; and that’s about it.
PostImage clearly isn’t going to appeal to everyone. The program doesn’t have the extended capture types you’ll sometimes see elsewhere (freehand, say). You can’t configure the hotkey. And the program is short on automation options. You might want to always save an image, maybe print or upload it, but there’s no way to set a default action — you must select it manually, each and every time.
Most digital cameras will by default save photos as JPEG files, and it’s easy to see why: they’re small, can be saved and reloaded quickly, and are supported by just about every graphics package available.

The first public beta of