Where can I download a full version of a free PDF editor?
Finding a truly free PDF creator and editor that allows you to execute most of the crucial functions in a document is a challenge. Most of the free editors allow you to only add s andments convert files to and from PDF fill out forms merge and split documents. Others with additional functions that let you change s. Supports adding hypers. Best affordability of its Pro version with full content editing features Cons Windows and Mac interfaces differ Limited features in the trial version 2. PDF-XChange Editor s This editor offers some great tool but not all of theme free. It is really helpful when editing a PDF with lots of form filling. Pros Ability to highlight all the form fields making easier to identify where you need to fill in. Offers a portable version. Cons Many of its features are not available in the free version. Works with windows only. 3. Sedja PDF Editor s This one of the few PDF editors that lets you edit pre-existing s in the document without adding a watermark. It has excellent range of tools with added layer of security. Pros You can load PDF from other websites. Supports adding hypers. Its cross-platformpatibility Cons Used on only three PDFs per hour. It limited to PDFs with less than 2 pages. It does not edit PDFs larger than 5MB There few other free creators and editors you can check on to find out how they work. For me of the many Ive interacted with the three above are better as I have discussed.
Which Operating System is the best for a physicist?
That depends on what of physics you intend to do. If you are interested in experimental physics and intend to one day work in a lab then there is a very high chance that you will be using LabVIEW s which is native to Windows. This doesn mean that Windows has to be your primary operating system but you will want to at least have a Windows partition on your hard drive. In addition to LabVIEW you will occasionallye across pieces of software that you will need to use for whatever research you are doing that are Windows exclusive e.g. Origin s(software) especially if you use expensive esoteric devices (such as a mass spectrometer) thate with their own software. Now if you happen to be interested inputational physics expect to run into a similar conundrum but this time all of the software that you need is going to be Linux exclusive. As before your main operating system doesn have to be Linux based but you will need to at least have a Linux partition on your hard drive. That being said for much of your day to dayputer using you can get by with any operating system of your choosing. Mathematica s and MATLAB s two of the most ubiquitous programs for physicists are available on Windows MacOS and Linux (and also have some opensource alternatives such as Octave s and Maxima s(software) ); Python s(programming_language) and C s(programming_language) programs can be written and executed on any operating system of your choosing; and whichever system you choose to use you should be able to find a LaTeX s editor that suits you. As for myself I am primarily interested in theory but I have spent some doing experimental physics in multiple labs (both of which used LabVIEW) as well as some numericalputational physics and I currently run Arch Linux s on both my laptop and desktop with Windows partitions. I love the customizablity (amongst other things see for instance Drew Henry's answer to Which OS is better Windows macOS or Linux? answer aid 18789438 ) of Arch Linux and now that I am used to it (which took some time) and have no need for LabVIEW I rarely ever boot into Windows. I have Mathematica installed as my go to fancy calculator (I also have Maxima installed but haven learned how to use it yet) and Octave (as well as NumPy and mpmath ) for numerical stuff. For typing up homework and writing papers I use the LaTeX editor Gummi s(software) . Running Python from the terminal is a breeze. I haven used a word processor in years but for simple spreadsheet tasks and presentations LibreOffice s works fine (or Google Docs s if I need to ensure Windowspatibility). Unfortunately Windows is far superior when ites to music players. Though I miss MusicBee s Rhythmbox s isn terrible and Ive gotten used to it. The same goes for PDF viewers Evince s isn terrible but I would rather be using PDF-XChange Viewer s . I use VLC for my video player and Chromium for my web browser which is pretty much identical to Chrome (note however that I do have to use Firefox if I want to stream videos from Hulu or Amazon). Dropbox works fine in Linux. A nice perk of Linux is that it very easy to create symbolic s e.g. to program data for programs such as Gnote s . I recently started using Quantum ESPRESSO which requires that I use a Linux operating system. As I mentioned Linux (Arch Linux in particular) is much more customizable than Windows. I have keyboard shortcuts to open every program that I use regularly to move programs between my two monitors and to change workspaces. Conky s(software) tells me the weather the current price of Bitcoin and how much of my CPU hard drive space and RAM are currently in use (and which programs are using them). I am not a PC gamer. Linux has a nice suite of puzzle games that keeps me entertained from time to time. All of the issues that havee up due to using Linux over Windows are fairly minor LibreOffice Impress files don always open nicely in PowerPoint; the music player and PDF viewers could be better; video streaming services don like it when you use open source web browsers; LabVIEW requires a Windows partition; some things that are plug and play in Windows can cause some grief in Linux (Wifi webcams printers etc.). Overall I would say the pros far outway the cons. So to summarize use whichever operating system you like but be wary of your potential needs as an aspiring physicist. In particular you will (or may) need Mathematica and Matlab various programming languagespilers a LaTeX editorpiler various numericalputing programs and experimental hardware interfacing programs and many of these programs will only be available on select operating systems. I don have much experience with Macs but I strongly prefer Linux to Windows and have been successfully and happily using Arch Linux full time for as long as I have been a graduate student.