Description: Here's what I do: I open up Page Style on an odt text document. I have the area set for an image as background. The image as originally imported is too dark and I want to lighten it up. So I click on transparency, which then shows Area Transparency Mode with the button displaying No Transparency. I click on the "transparency" button halfway between "No Transparency" on top and "gradient" on bottom. The automatically proffered setting is 50%, but it can be set to any percentage. I hit "apply" at the bottom of the box. However, regardless of the percentage setting, there is absolutely no transparency adjustment. The area background image remains exactly as originally imported. I hit "reset." Nothing happens. I've been using LO for more than ten years, almost entirely with odt text documents, for at least half of which (literally thousands) I've had to make transparency adjustments. Which never, ever failed. And now they simply don't work at all. Steps to Reproduce: 1.Select Page Style: Area: Image 2.Select Transparency mode: Any percentage 3.Select "Apply" 4.No effect whatsoever. Actual Results: Nothing happened. Have previously used transparency adjustment in page style very successfully in thousands of odt documents. Now all those transparency adjustments (in prior documents) have disappeared and cannot be recreated. Nor can such adjustments be made in newly created documents. Expected Results: Normally, one would see a lightening effect on the background image, with greater lightening with higher percentage transparency. Now nothing happens at all. Reproducible: Always User Profile Reset: No Additional Info: Invoking the "Area Transparency Mode" on the Page Style sheet should lighten the Background image. NOTA BENE: The same problem occurs when using the transparency option in paragraph style. Version: 25.2.4.3 (X86_64) / LibreOffice Community Build ID: 33e196637044ead23f5c3226cde09b47731f7e27 CPU threads: 8; OS: Windows 10 X86_64 (10.0 build 19045); UI render: Skia/Raster; VCL: win Locale: en-US (en_US); UI: en-US Calc: CL threaded
Maybe Transparency is only for fill colors. https://help.libreoffice.org/26.2/en-US/text/shared/01/05210700.html?System=WIN&DbPAR=WRITER&HID=cui/ui/transparencytabpage/FL_PROP#bm_id3093441
6/21/2025 Edit Addition:Important Update: I've now tried the transparency adjustment (in odt documents) in each of the (1) Color, (2) Gradient, (3) Image, (4) Pattern, and (5) Hatch alternatives on the Page Style: Area block. Very interestingly, the transparency option DOES work (consistently) in each of the (1) Color, (2) Gradient, and (5) Hatch alternatives. The transparency option DOES NOT work (consistently) on either of the (3) Image or (4) Pattern alternatives. I will see if I can add this to the above-referenced bugzilla report.
Unless it was decided to remove the transparency on windows, it is a regression. The transparency works on Linux. It was working on windows at least up to 7.2.0.4 Confirm with : Version: 25.2.4.3 (X86_64) / LibreOffice Community Build ID: 33e196637044ead23f5c3226cde09b47731f7e27 CPU threads: 2; OS: Windows 11 X86_64 (10.0 build 22621); UI render: Skia/Raster; VCL: win Locale: en-US (en_US); UI: en-US Calc: threaded Versions where the transparency of images works : Version: 7.2.0.4 (x64) / LibreOffice Community Build ID: 9a9c6381e3f7a62afc1329bd359cc48accb6435b CPU threads: 2; OS: Windows 10.0 Build 22621; UI render: Skia/Raster; VCL: win Locale: en-US (en_US); UI: en-US Calc: threaded Version: 25.2.4.3 (X86_64) / LibreOffice Community Build ID: 33e196637044ead23f5c3226cde09b47731f7e27 CPU threads: 8; OS: Linux 6.11; UI render: default; VCL: gtk3 Locale: en-US (en_US.UTF-8); UI: en-US Flatpak Calc: threaded
Created attachment 201399 [details] Linux vs windows comparison of image transparency
6/21/2025 @7:55 A.M. (EST-US): 1. Deleted LO 25.2.4. 2. Installed LO 24.8.7. 3. Problem no longer exists in 24.8.7. Transparency works fine for all five options under Page Style: Area. 4. Ergo, this would definitely appear to be a bug in post-24.8.7 iterations of LO. At least on old W10 Dell laptops.
bibisected with win64-25.8 author Noel Grandin commit 1f61a2ec4e252d2eeccabd65a10650c8ee231a1b tdf#166715 speed up transparent fill operation Transparent bitmapex drawing works fine these days, so we dont need this fallback path anymore.
6/25/2025: 6:32 A.M. (EST/US) After email notice from M. Wlazlowski, I supposed that a fix had been implemented. After then re-installing LO 25.2.4.3, I find that this is not the case. The same continuing transparency problems in latest W10 for page Style: Area - Image and Pattern occur in the same manner as previously, i.e., no transparency is possible at all. Is this specifically a W10 problem with some of the more recent W10 updates? I'm not in a position to test that out by trying backdated W10 versions. (Disabled, non-tech, old-age pensioner in a nursing home with old laptop). When I installed the older LO 24 versions they somehow keep automatically being updated. Question: How to lock in LO 24.8.7 so it won't be automatically updated. All suggestions and help appreciated.
Noel Grandin committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/9c8368955b8f512d75268e7ed89e692fa9d1c930 tdf#167135 Transparency setting page style area for image background It will be available in 26.2.0. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Is it possible to make it available in earlier version for e.g. 25.8? A user (roboduck77) would really appreciate seeing this fix sooner rather than later!
Noel Grandin committed a patch related to this issue. It has been pushed to "libreoffice-25-2": https://git.libreoffice.org/core/commit/89d8208c50ebf5ab5dc07d73a65a59bb549749b8 tdf#167135 Transparency setting page style area for image background It will be available in 25.2.5. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Noel Grandin committed a patch related to this issue. It has been pushed to "libreoffice-25-8": https://git.libreoffice.org/core/commit/3389c9233a475f7b53b2621f645c752ec61dfc73 tdf#167135 Transparency setting page style area for image background It will be available in 25.8.0.0.beta2. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Verifyed Version: 25.8.0.0.beta1+ (X86_64) / LibreOffice Community Build ID: 3b1cc18a0d1caf64104f9962011a4781b90b915a CPU threads: 16; OS: Windows 11 X86_64 (build 26100); UI render: Skia/Raster; VCL: win Locale: en-US (es_ES); UI: en-US Calc: CL threaded
*** Bug 167276 has been marked as a duplicate of this bug. ***