https://bugs.documentfoundation.org/show_bug.cgi?id=143485
--- Comment #3 from R. Bingham <[email protected]> --- (In reply to Екатерина from comment #2) > Hello. It is not clear what the error is. And it is not clear in steps how > to get this error Version: 7.1.5.2 (x64) / LibreOffice Community Build ID: 85f04e9f809797b8199d13c421bd8a2b025d52b5 CPU threads: 8; OS: Windows 10.0 Build 19043; UI render: Skia/Vulkan; VCL: win Locale: en-US (en_US); UI: en-US Calc: CL Steps to reproduce in more detail: 1) In LO, select File->New->Presentation. A new document with name "Untitled 1" or such should be created. 2) Cancel "Select a Template" if that pop-up appears. 3) Select View->Slide Pane then View->Master Slide. Likely only a single master slide format will show consisting of a "Click to edit" top-of-slide Title Area and a "Click to edit" body area containing a bullet outline heirarchy. 4) Select Slide->New Master. A second slide master template should appear in the Slides side pane. It should have name of "Default 1". 5) With the new master selected, Insert->Image then enter (using as readily accessible PNG image) https://ask.libreoffice.org/uploads/asklibo/original/1X/1eec1ce28d4605f25e751aea59dbef2bc0782151.png in the file navigator widget image pathname area then Open. If the image file download is successful than that PNG image should show in the center of the "Default 1" master slide. 6) View->Normal then Slide->New Slide. Slide #2 should appear in the Slide Pane and main edit window. Select the cursor in the slide title are an insert some identifying title such as "Slide 2 title text" to demo its appearance in exported slide. 7) Slide->Change Slide Master. In the "Select a Slide Design" popup, select the master with the LO logo graphic showing then OK. The LO logo graphic should show but be non-selectable as it is a master layer object, not a layer of an individual slide. 8) File->Export then select in the File format droplist any of EMF, EPS, GIF, PNG, SVG or WMF, then select a destination directory and File name of your choice then select Export... 9) A popup may appear with options for the particular export file format selected in (8). Take the defaults then OK. 10) For export formats EMF, EPS, GIF, SVG or WMF view the export with your favorite image file apps. The result is an image file containing a slide with the expected title text but no master slide background image. The master slide background image silently disappears. For export format PNG the result is Warning popup "Image filter not found." then Error popup "Error saving the document Untitled 1: General Error. General input/output error.". 11) PNG PARTIAL WORKAROUND: The master slide image chosen here ( https://ask.libreoffice.org/uploads/asklibo/original/1X/1eec1ce28d4605f25e751aea59dbef2bc0782151.png ) contains transparency. The bug list concerning LO dealing with transparency in general is long and I'm not going to list it here. If during the export of a slide containing a PNG image with transparency, the PNG option for Drawing Object->Save transparency is UNCHECKED, then the export not only succeeds but results in the expected exported slide image containing the LO logo master slide image. Regards. -- You are receiving this mail because: You are the assignee for the bug.
