4.0.9 is now available

There were still a few nasty bugs that were found in 4.0.8, so here’s an update that squashes them. The selection and Line/Curve tools should now be trouble-free for everyone!

As usual, you can download the update directly from the website, or you can use the built-in updater via Settings –> Updates –> Check Now.

Here are the fixes:

  • Fixed: Selection tools would sometimes crash
  • Fixed: Line/Curve tool would draw nothing if the Shapes tool was configured for “Draw Filled Shape”
  • Fixed: Thumbnails for .PDN files were not working on some systems
  • Fixed: The “Finish” button in the toolbar would not update its enable/disable state when switching between images



49 thoughts on “ 4.0.9 is now available

  1. Bob says:

    Reported the selection tool crash bug this morning and get a return email less than 8 hours later saying the bug is fixed – fantastic service! I just wish the big organizations had the same level of customer support and service Rick provides. 10/10!

  2. Aaron Hall (@GoodThings2Life) says:

    Hi Rick!

    Any chance that you might consider bringing at least SOME of into a universal app for Windows 10 at some point? Would be great getting some of this power in a more mobile format, particularly on phone/tablet. 🙂

    • Rick Brewster says:

      Aaron, Paint.NET as UWP probably won’t happen. IIRC it’s an extension of the sandboxed app model introduced in Windows 8. They roped off way too much of the .NET Framework and Win32 APIs, and you also can’t use C++/CLI (of which I have 10’s of KLOCs of). It’s not really feasible to port a non-trivial classic/desktop app to UWP. It would be very time consuming to do this, it would fracture the release model into pre-Win10 and post-Win10 versions, and I’m just not convinced there would be any end-user benefit. So, my answer here is the same as when people were excited about WPF and asked me if I was going to jump over and port Paint.NET to it: “No, because WPF isn’t a feature.” (there were other reasons too)

      However, that doesn’t prevent me from taking advantage of touch as an input source, or optimizing the UI to be much more touch friendly. Win10’s “tablet mode” makes that much more feasible.

      I don’t see Paint.NET moving to phone. That doesn’t even fit most usage scenarios for the app. Plus, nobody has a Windows Phone.

  3. fred says:

    great,thanks. add the stretch tool, select an area inside picture and only increase its size or stretch that bit while rest of picture follows perfectly.

    • Rick Brewster says:

      Maybe as a plugin? I gotta figure out when to add more plugin supports …

      For Image->Resize, a plugin system could be pretty straightforward.

      For adding sampling modes to the Move Selected Pixels tool, things get much more complicated. Do you know whether RotSprite can be implemented at 30fps for large images? 🙂 The code for bilinear sampling there in Paint.NET is pretty ridiculously complicated.

      • Call me Lee says:

        The installer always crashes after trying to prepare “squmapi.dll,” and I don’t know what causes it…

  4. hamwizard says:

    Amazing timing, I just submitted a crash report, 90 seconds ago, using the selection tool. Well you can discard that I suppose! (This program is generally incredibly stable)

    Thank you

  5. hika says:

    Any idea why the recent update takes forever to install? Specifically, the .NET framework? It seems like it isn’t even moving and I’m not going to install it if its gonna take hours to finish.

  6. Curius user says:

    I am still hoping for a “save all” function. Is that still going to happen? By save all function I mean saving all open projects without having to type a name for each one by one. If I have 10 projects open and want to quickly exit I have to save them one by one.

    • Rick Brewster says:

      Argh! It doesn’t work that way on any system I tested on.

      Did you switch into or out of “Tablet Mode” while Paint.NET was open? That’s the 1 thing I know can cause this right now. (it’s a fixable race condition on my side)

      I did get a report of this on a Windows Insider “Redstone” build, but haven’t seen it myself on RTM or TH2 (which is what you have — build 10.0.10586). Having the OS version # in this screenshot helps, btw.

  7. Jason says:


    I was wondering if the size of the pointer / crosshair was within your control or if this is governed by Windows? I recently bought an MS Surface Book and because of the very high screen resolution the crosshair has become incredibly small. It’s not too much of a problem when it’s over the canvas but is very easy to lose when anywhere in the gray region surrounding the canvas. If the size can’t be adjusted then could it be made a bright color when over the gray region?

    Thank you for your consideration.


  8. Günter Geißelbacher says:

    I don’t know if somebody has reported my problem before.
    When I open JPEG files with lot of exif included and I save the file, I miss the entry for lens type.
    I use an Olympus OM-D E-M1 with two different Olympus lenses (12-40mm f2.0 & 75-300mm f4.8-6.7II).
    The tag I miss should be: 0x0203 LensModel

    I don’t know if other tags are missing. But that tag is what I found and miss.

    all the best from Austria


  9. TheGexon38 says:

    Heh, thanks for fixing line bug. I’ve met it just a day ago. Developing a videogame wants nice working software, and PDN is still one of the best.

  10. Vetex says:

    Suggestion for a later update; could you add a “shape top left” indicator at the bottom like how rectangle select has? It’d really help with making things perfectly centered and such.

  11. Giuliano says:

    Hello everybody. I am not a great expert so excuse me please for my following question : Paint.Net 4.0.9 works under Windows 10 ? I have 3.5.10 version workingh with Windows 7 64 bit and I want to upgrade my system to Windows 10. Thank you very much for your kindness.

  12. gerry says:

    on the website it says “4.0.9 … released on January 5th, 2015” – I guess the year is not correct…

  13. amaroqdricaldari says:

    Thanks for the update!
    I have a question/idea for you; could we have an Alpha Dithering function when saving 8-Bit images? (Alternating between transparency and no transparency, based on your transparency threshold)

    Also, the ability to natively import/export 32-bit BMP images, or to embed a transparency threshold on 24-bit PNG/BMP images (with Alpha Dithering) would be really handy.

  14. fred says:

    4.09 wont run on my Win 8.1 – apparently I think its because the .net component isn’t stand alone any longer ans so MS prevents it from running. I cant go backwards either…this is so frustrating!

    • amaroqdricaldari says:

      Try going to the Micro$oft website and downloading the various .NET installers (Framework and Core, both), Visual C++ Redistributables (both x86 and x64), and so on, and install them all. You can also try running the latest .NET installer and repairing your existing installation.

      The reason you should install all of the .NET versions, including older ones, and the reason you should install both the x86 and x64 Visual C’s is because different programs will not run unless you also have the older versions, and some 32-bit programs won’t run properly on 64-bit Windows without the 32-bit runtimes installed alongside the 64-bit ones.

      Now if your version of Windows is 32-bit, and not 64-bit, you don’t need the 64-bit runtimes. I’d still get them though and put them on a flash drive (or burn them to a CD), because Microsoft might eventually remove them from their website.

  15. JOJO says:

    Is it possible that we will eventually be able to zoom in without the edge of the PDN window being anchored to the edge of the canvas? So for example we could have the edge of the canvas at the center of the screen instead of at the very edge where a tool panel could be on top? Would be life changing lol

  16. S5 says:

    Using “edit” button in explorer opens paint instead of Problem occured after one of the recent updates. Reinstalling didn’t help. Windows 10 Pro x64.

  17. Jordan W. says:

    Any chance pressure sensitivity for use with drawing/ graphic tablets will come to, in the future?

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