Does Win11 PHOTOS Save-As convert the file or simply add the incorrect extension ?


GeneralLee01

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Hi all,

I made a screenshot, which the system saves as PNG

The I open that PNG in Windows11 PHOTOS

Click Save-As and select JPG

Does this convert the file to JPG or will it now still be a PNG but with the incorrect JPG extension ?

Thanks !

2022-04-05-60.png
 

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Archigos

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When you select "Save As" it converts the file to the extension you pick, so yes, that will change a PNG to JPG and not just give it the wrong extension
 

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GeneralLee01

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Thanks, interesting is that when I upload them to Wordpress they end up being PNG.
 

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Archigos

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That's an issue with Wordpress... I've dealt with it for years.
 

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Archigos

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Thankfully all modern OS's are smart enough to display basic images (JPG, PNG, BMP, etc.) with the wrong extension so it 'should' display even when wrong, which is what Wordpress relies on.
 

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GeneralLee01

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Weird, it was fine till Sept last year. Is only now that I noticed this is happening. According to Wordpress helpdesk (at least that is what I understand from them) this is not an issue the are familiar with and also do they not have code running that converts images.
 

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Bree

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Does this convert the file to JPG or will it now still be a PNG but with the incorrect JPG extension ?
Rather stupidly, no, Photos does not do any conversion. It just changes the extension.

If you really want to do the conversion properly, then open the .png in MS Paint and save as a .jpg. However, you may not want to. A .png uses loss-less compression, wheras a .jpg introduces compression artefacts. And if the image has large areas all the same colour, then a .png may actually be a more efficient compression, with a smaller file size.
 

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    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October. Windows Update offered the 22H2 Feature Update on 20th September 2022.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, supported device running Windows 11 Pro.

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 4GB RAM, 128GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro 22H2 Insider Beta, and the release build of Win11 22H2, both as native boot vhdx.

    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 4GB RAM, 128GB NVMe ssd, supported device running Windows 11 Pro.
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    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround. In-place upgrade to 22H2 using ISO and a workaround.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, supported device running Windows 11 Pro.

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 4GB RAM, 128GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro 22H2 Insider Beta, and the release build of Win11 22H2, both as native boot vhdx.

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Archigos

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Wait, Photos doesn't? I thought it used the same as Paint... my bad on that one.
 

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GeneralLee01

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Dang why would Windows do that ??? Sloppy programming or is there a good reason to do it like they did in PHOTOS ?

Now I have uploaded many thousands of images with an incorrect extension ?!?!? :-( I used to do it with Paint but could do it faster (I thought) with PHOTOS.
 

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    HP 8A34 (U3E1)
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Bree

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Wait, Photos doesn't? I thought it used the same as Paint... my bad on that one.
No, I couldn't believe it was true so I actually tested it. All Photos does is change the extension, opening the resulting saved '.jpeg' in Notepad shows a PNG tag at the top of the file !

1649191371060.png
 

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    Windows 11 Home
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    fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October. Windows Update offered the 22H2 Feature Update on 20th September 2022.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, supported device running Windows 11 Pro.

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 4GB RAM, 128GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro 22H2 Insider Beta, and the release build of Win11 22H2, both as native boot vhdx.

    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 4GB RAM, 128GB NVMe ssd, supported device running Windows 11 Pro.
  • Operating System
    Windows 11 Pro
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    Manufacturer/Model
    Dell Lattitude E4310
    CPU
    i5 M 520
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    8GB
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    500GB HDD
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    unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround. In-place upgrade to 22H2 using ISO and a workaround.

    My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB ssd, supported device running Windows 11 Pro.

    My SYSTEM FOUR is a 2-in-1 convertible Lenovo Yoga 11e 20DA, Celeron N2930, 4GB RAM, 128GB ssd. Unsupported device: currently running Win10 Pro, plus Win11 Pro 22H2 Insider Beta, and the release build of Win11 22H2, both as native boot vhdx.

    My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 4GB RAM, 128GB NVMe ssd, supported device running Windows 11 Pro.

GeneralLee01

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Smart !

And Wordpress recognizes that and changes the extension back to PNG.
 

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    HP 8A34 (U3E1)
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    16024 MBytes
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    Intel Iris Xe Graphics
    Sound Card
    Intel Smart Sound Technology for Bluetooth Audio. Intel Smart Sound Technology for Digital Microphones. Realtek High Definition Audio
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    953GB INTEL SSDPEKNU010TZH (Unknown (SSD))
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Archigos

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If all you were doing was changing PNGs to JPGs and not 'editing' them, I'd recommend SageThumbs (SageThumbs)... you can have File Explorer (or alternative) open to the folder, highlight the PNGs you want to convert, right-click, go to Sage's area of the Context menu and bulk convert the files... I've been using it for years and it's great.
 

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GeneralLee01

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Thanks for the suggestion Archigos. Will SageThumbs also get me WEBP thumbnails in Win11 ?
 

My Computer

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  • OS
    Windows 11 Home 64-bit
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    HP Pavilion x360 2-in-1 Laptop 14-ek0xxx
    CPU
    12th Gen Intel Core i7-1255U
    Motherboard
    HP 8A34 (U3E1)
    Memory
    16024 MBytes
    Graphics Card(s)
    Intel Iris Xe Graphics
    Sound Card
    Intel Smart Sound Technology for Bluetooth Audio. Intel Smart Sound Technology for Digital Microphones. Realtek High Definition Audio
    Monitor(s) Displays
    Generic PnP Monitor
    Screen Resolution
    1280x720 pixels
    Hard Drives
    953GB INTEL SSDPEKNU010TZH (Unknown (SSD))
    Browser
    Microsoft Edge
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    McAfee , Malwarebytes , Ccleaner
    Other Info
    BIOS: F.10-08/29/2022

Berton

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The thing about WordPress and the .png [Portable Network Graphics] format does kinda make sense since WordPress is all about Internet and Networking.
 

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Archigos

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Thanks for the suggestion Archigos. Will SageThumbs also get me WEBP thumbnails in Win11 ?
Sadly, I don't think Sage works with WEBP files, so it wouldn't have any effect on thumbnails for them.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro β
    Computer type
    Laptop
    Manufacturer/Model
    HP Pavilion Laptop 15-eg0070wm
    CPU
    Intel® Core™ i7-1165G7
    Memory
    32 GB DDR4-3200 SDRAM
    Graphics Card(s)
    Intel® Iris® Xᵉ Graphics
    Screen Resolution
    1920x1080
    Hard Drives
    2TB PCIe® NVMe™ M.2 SSD
  • Operating System
    macOS Ventura
    Computer type
    PC/Desktop
    Manufacturer/Model
    Apple iMac 27" 5K (2017)
    CPU
    3.4 GHz Quad-Core Intel Core i5
    Memory
    40 GB 2400 MHz DDR4
    Graphics card(s)
    Radeon Pro 570 4 GB
    Monitor(s) Displays
    27" 5K, 34" UW
    Screen Resolution
    Mon 1: 5120 × 2880 Mon 2: 2560 x 1080
    Hard Drives
    32GB NVME, 1TB SSD

GeneralLee01

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I just tested. SageThumbs can not handle webp, so i deleted it again.
 

My Computer

System One

  • OS
    Windows 11 Home 64-bit
    Computer type
    Laptop
    Manufacturer/Model
    HP Pavilion x360 2-in-1 Laptop 14-ek0xxx
    CPU
    12th Gen Intel Core i7-1255U
    Motherboard
    HP 8A34 (U3E1)
    Memory
    16024 MBytes
    Graphics Card(s)
    Intel Iris Xe Graphics
    Sound Card
    Intel Smart Sound Technology for Bluetooth Audio. Intel Smart Sound Technology for Digital Microphones. Realtek High Definition Audio
    Monitor(s) Displays
    Generic PnP Monitor
    Screen Resolution
    1280x720 pixels
    Hard Drives
    953GB INTEL SSDPEKNU010TZH (Unknown (SSD))
    Browser
    Microsoft Edge
    Antivirus
    McAfee , Malwarebytes , Ccleaner
    Other Info
    BIOS: F.10-08/29/2022

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