| Status | Subtype | Assigned | Task |
|---|
| | | | · · · |
| Open | | None | T43371 Thumbnail/imagescaler (tracking) |
| Declined | | None | T20310 thumbnail images not created, PHP Warning at GlobalFunctions.php on line 1943 |
| Resolved | | None | T26854 Black/striped thumbnails of CMYK JPEGs |
| Resolved | | None | T30310 Thumbnails creation errors |
| Declined | | None | T33680 [Regression] Thumbnail cache should be invalidated on re-upload |
| Resolved | | McZusatz | T25326 PDF image extraction fails |
| Resolved | | None | T30810 Video thumbnails don't work (on live Commons?) |
| Resolved | | Aklapper | T25831 Better error presentation for high res PDFs |
| Declined | | None | T39539 Image thumbnailing on WAMP sometimes locks up |
| Declined | | None | T46310 Thumbnail cache should be automatically discarded after 6 months |
| Resolved | | aaron | T46319 Error generating thumbnail: The source file for the specified thumbnail does not exist |
| Duplicate | | None | T38166 HTTP 500 error when generating 6000px wide thumbnail of a 6912px wide and 12.5MB JPEG file |
| Resolved | | None | T46508 htcp cache purges for images do not seem to clear europe upload squid caches |
| Invalid | | Aklapper | T43130 Invalidation of Varnish thumbnail cache sometimes doesn't work |
| Declined | | None | T48243 Requests for new thumbnail sizes never return |
| Resolved | | aaron | T43113 thumb.php fails to generate thumbnail of SVG images (gives HTML error as body) |
| Resolved | | None | T44963 Squid cache not being cleared for thumbs when updating new version of image |
| Resolved | | mark | T48350 Purging for all sites but eqiad is broken |
| Declined | | None | T43174 Many SVG files without namespace (xmlns) attribute have stopped rendering |
| Resolved | | None | T50003 Large thumbnails of "lossless" files return error |
| Resolved | | None | T50007 Error creating PDF on Commons: "convert: no decode delegate for this image format" (fixed in GS 9.07) |
| Resolved | | None | T50041 Error creating thumbnail for specific PDF files on Commons: "Killed" (Ghostscript exceeding memory limits?) |
| Resolved | | None | T41615 404 error for all revisions of some files |
| Resolved | | aaron | T43361 [404 File Not Found] Some lost files |
| Resolved | | None | T43362 Error creating thumbnail: Metadata uses too much space |
| Resolved | | None | T46872 401 Unauthorized for min.wp's thumbnails |
| Declined | | None | T43372 [Regression] Error creating thumbnail: Error reading SVG:Invalid URI |
| Resolved | | None | T43373 [Error generating thumbnail] Empty error on Human_100_100000.svg |
| Declined | | None | T43375 Error creating thumbnail: convert: Expected 8 bytes; found 0 bytes |
| Resolved | | • brooke | T43376 Error creating thumbnail: oggThumb failed to create the thumbnail. |
| Declined | | None | T43382 [Regression] Corrupt GIF no longer thumbnails or renders |
| Declined | | None | T43381 Handle invalid PDF - Can't process font stream, loading font by the name |
| Resolved | | TheSandDoctor | T43380 Corrupt images should be detected and reported - by humans or automatic script. |
| Resolved | | None | T50178 Error creating thumbnail: "Warning: File has insufficient data for an image." |
| Declined | | None | T43386 [Regression] Error creating thumbnail: convert: incorrect data check |
| Declined | | None | T43388 [Regression] DjVu size info not extracted, thumbs failing |
| Duplicate | | None | T43403 UW does not display thumbs for OGV files in some browsers |
| Resolved | | None | T43447 401 error for some thumbnails on zh.wiki |
| Declined | | None | T45345 401 Unauthorized error preventing thumbnail display |
| Resolved | | None | T45357 "thumbnail" or "thumb" embed fails on Tulsi Gabbard.jpg unless pixel width specified |
| Resolved | | None | T45364 Not updated thumbnails / original file when reverting a picture to an older version (JPG, 2007, 2,898 × 3,807) |
| Resolved | | None | T43528 Thumbnails not displayed for local videos on test2wiki |
| Declined | | None | T43665 Occasional segmentation fault on PDF thumbnail generation |
| Resolved | | None | T48976 Thumbnail and originals cache purging fails on Varnishes |
| Duplicate | | None | T57431 Reupload should purge File page (aka image has malformed dimensions) |
| Declined | | aaron | T44047 thumb.php on Wikimedia Commons is serving broken images (thumbnail generation fails) |
| Resolved | | None | T54203 VipsScaler clutters /tmp on imagescalers |
| Resolved | | None | T50927 201px thumbnail of Coat_of_arm_Bautzen.svg on Commons cannot be purged |
| Resolved | | None | T56045 Wikimedia thumbnail generator often returns HTTP 500 Internal Server Error |
| Resolved | | None | T49409 Specific animated GIF with large number of frames has no thumbnails created |
| Declined | | None | T46071 Error Generating Thumbnail for 700 Mpx JPG |
| Resolved | | None | T44302 Thumbnails of images with "+" in filename do not show |
| Resolved | | None | T44342 Some Thumbnails are not created |
| Resolved | | None | T56188 Thumbnails from recent uploads don't render |
| Resolved | | None | T49825 European varnish cache is not purged |
| Resolved | | None | T54740 mw1153 often returns 500 errors generating thumbnails |
| Open | | None | T51528 MediaWiki tries to create a thumbnail multiple times although that is not needed |
| Resolved | | None | T66622 Error generating thumbnail: As an anti-spam measure, you are limited from performing this action too many times |
| Declined | | Aklapper | T51693 Thumbnail of GIF file is not displayed in PDF output |
| Resolved | | None | T66801 Image rendering of subpages from a PDF file not working on Portuguese Wikisource within ProofreadPage extension |
| Resolved | | matmarex | T61975 PDF containing jpx/jp2 encoded images from Archive.org uploaded to Commons won't thumbnail |
| Declined | | None | T63711 Out of memory for some GIF thumbnail versions of animated GIF images on Commons (exceeding the 50 MP limit?) |
| Declined | | None | T72189 Stuck old 1024px thumbnail version of a specific djvu image on wikisource.pl |
| Resolved | | Bawolff | T67217 Operational issues for very large TIFFs |
| Resolved | | • Gilles | T69698 Pre-render certain thumbnail sizes on upload |
| Open | | None | T67383 Generate optimised thumbnail even when dimensions match original |
| Duplicate | | None | T67475 Resized raster image does not succeed metadata of the original file |
| Resolved | | None | T72734 Thumbnails for specific PDF file on Commons not generated: "no decode delegate for this image format" |
| Open | Feature | None | T69695 Replace "Thumbnail size" property in preferences with responsive resizing images |
| Resolved | | Jdforrester-WMF | T69703 Change MediaWiki default thumbnail size to 300px based on user behavior |
| Open | | None | T68109 Spam restriction on thumbnailing restrictive enough I hit it on normal browsing activity |
| Declined | | None | T71336 VIPS scaled thumbnails don't have a comment with a link to the file description page |
| Resolved | | None | T71377 Error generating thumbnail - OOM on progressive jpeg |
| Declined | | • Gilles | T70145 Generate JPG thumbnails with ImageMagick + mozjpeg instead of IM alone |
| Declined | | None | T87775 Evaluate vignette for thumbnail scaling |
| Resolved | | TheDJ | T88833 SVG thumbnail generator: relative font-size: smaller/larger not handled (text disappear) |
| Declined | | None | T91104 PHP thumbnailer as a service |
| Resolved | | fgiunchedi | T95333 220px of Fachada_e_lateral_da_Catedral_São_Sebastião_após_pintura,_Coronel_Fabriciano_MG.JPG not purging |
| Resolved | | Aklapper | T96505 Problems with image thumbnailing on Commons |
| Resolved | | None | T99227 Setting PDF or DjVu thumbnail size by height produces "Invalid thumbnail parameters" error |
| Resolved | | None | T100435 "Error creating thumbnail: Error code: 137" (for progressive JPEG not using baseline) |
| Resolved | | Tgr | T101834 Thumbnail image on Commons not displayed |
| Resolved | | None | T102597 Won't create thumbnail for 30000×3200 pixel file on Commons |
| Declined | | Aklapper | T105793 Commons thumbnail of Pluto photo is broken at 500px |
| Declined | | None | T107742 Superfluous border line in thumbnail |
| Open | | None | T108517 PNG thumbnails issues (tracking) |
| Resolved | | • Gilles | T198370 Transparent background renders as white in PNG thumbnails |
| Duplicate | | None | T113123 image magick stripping colour profile of PNG files [probably regression] |
| Duplicate | | None | T113458 Specific thumbnail request for a SVG log image name throws: Error generating thumbnail |
| Resolved | | MoritzMuehlenhoff | T111815 SVG files larger than 10 MB cannot be thumbnailed |
| Resolved | | MoritzMuehlenhoff | T112421 Update rsvg on the image scalers to 2.40.16 (to solve several SVG rendering issues) |
| Duplicate | | None | T115278 Thumbnail URL construction inconsistent (leading to URL with >300 characters creating 503 error when accessing the "wrong" way) |
| Declined | | None | T115813 Thumbnail missing for PDF file |
| Resolved | | • brooke | T117333 Generation of a WebM video thumbnail on Commons broken |
| Duplicate | | None | T118568 Huge SVG causing "huge input lookup" issue on Shanghai page. |
| Duplicate | | None | T123806 Some thumbnails return an application/x-www-form-urlencoded Content-Type (fixed by purging) |
| Duplicate | | None | T123381 Thumbnailer giving random changes in contrast/white point for greyscale PNG |
| Resolved | | None | T127914 PDF-preview is missing (Error creating thumbnail: can't process font stream) |
| Open | | None | T133175 Specific Thumbnail generation for a broken invalid TIF file not working anymore |
| Invalid | | None | T131029 Created thumbnail of specific PNG image has 798px width instead of usual 800px |
| Invalid | | jeblad | T136088 The file Socialist_Party_logo.svg render a blank thumbnail due to an included "xlink:href" not defining a MIME type for its base64 data |
| Resolved | | None | T140536 Thumbnails of some specific images show unwanted black lines |
| Resolved | | None | T147992 Large image https://commons.wikimedia.org/wiki/File:Map_of_Hindoostan,_1788,_by_Rennell.jpg can't create thumbs |
| Resolved | | BBlack | T148917 Thumbnails failing to render sporadically (ERR_CONNECTION_CLOSED or ERR_SSL_BAD_RECORD_MAC_ALERT) |
| Resolved | | jrbs | T163471 When viewing PDF files, `&page=0` results in "Error creating thumbnail: Invalid thumbnail parameters" |
| Resolved | | Reedy | T164045 PDF thumbnails fail to render on newly-uploaded PDF files |
| Resolved | BUG REPORT | TheDJ | T167420 Thumbnails for specific PDF file rendered half of their proper width on File: page (thumbnail file itself is correct) |
| Resolved | | • Gilles | T168949 Proper thumbnails of portrait photos not being generated; serious display issues |
| Resolved | | • Gilles | T169072 Due to missing fonts on Thumbor hosts, PNG thumbnail of SVG file showing a Devanagari character only displays a Unicode number box |
| Resolved | | • Gilles | T170352 Large SVG files fail to render in Thumbor (due to lack of use of the --unlimited option in librsvg) |
| Resolved | | • Gilles | T170109 Thumbor should support SVG files that start with <svg:svg |
| Resolved | | • Gilles | T172556 Images with embedded thumbnail whose orientation (rotation) is different than that of the main image render thumbnails wrong (smaller than they should be) |
| Resolved | | None | T175812 Some PDF files do not show a thumbnail: "500 Internal Server Error" |
| Resolved | | None | T61668 "Error generating thumbnail" for a specific PDF file (gs OOM'ing?) |
| Declined | | None | T181507 Some BSicon SVG files that don't define a namespace on Commons fail to load, their PNG thumbnail have a HTTP 429 error |
| Duplicate | | None | T184182 Image thumbnail shows old version |
| Resolved | | • Gilles | T188122 Specific PDF file only displays completely white page previews |
| Resolved | | None | T188885 Thumbnail missing for PDF file (when in PDF/A format?) |
| Declined | | None | T189646 Large PDF file does not display page thumbnails |
| Resolved | | • Gilles | T191028 Thumbor incorrectly normalizes .jpe and .jpeg into .jpg for Swift thumbnail storage |
| Open | | None | T192309 Thumbnails for specific TIFF pages have small rendering errors, ugly edges, glow missing |
| Open | | None | T196054 Preview/thumbnails for XCF files (XCF file version 11, written by GIMP 2.10) cannot be generated by ImageMagick |
| Resolved | | ASiplas | T196247 Corrupt JPG previews of multi-layered PDF book (not all pages, not all sizes) |
| Resolved | | • Gilles | T196961 Non-rendering of thumbnail of compressed pdf in Commons |
| Resolved | | • Gilles | T212081 PNG thumbnail of SVG file not rendered correctly, mostly black |
| Duplicate | | None | T213013 PNG thumbnail of SVG image shows incorrectly (general texts problem) |
| Resolved | | • Gilles | T214270 Thumbnails of many scanned PDF books show OCR text instead of scanned pages |
| Resolved | | None | T40668 Edge of SVG cut off at certain thumbnail scaling resolutions |
| | | | Restricted Task |
| Open | | None | T64463 Consider raising $wgMaxImageArea / $wgMaxAnimatedGifArea |
| Duplicate | PRODUCTION ERROR | None | T241692 500 Internal error when accessing the thumbnail of a 50MB TIFF file on Commons |
| Duplicate | BUG REPORT | None | T231771 Thumbnail for 50MB TIFF file not shown: HTTP 429 error (due to profile info in TIFF file?) |
| Resolved | | • ema | T256313 Cached thumbnails and originals are sometimes not being purged correctly/quickly |
| | | | · · · |