Exif Thumbnail Adder

about

description

This application for android devices searches for pictures (JPEG) on your device and <b>adds a thumbnail</b> if they don't have one yet. Thumbnails are added to the EXIF metadata structure. It is designed to work from android Oreo (android 8, SDK 26). Please report issues here: <a href="https://github.com/tenzap/exif-thumbnail-adder/issues">https://github.com/tenzap/exif-thumbnail-adder/issues</a> For more information, some known facts and how you may contribute, refer to the [project homepage][1]. <b>Rationale</b> On some smartphones, when wanting to import pictures to Windows (or any device/operating system supporting MTP or PTP protocols), I noticed the pictures may not display a thumbnail in the import wizard (whether through the Photos app, or through the Windows Explorer import feature). There are two possible reasons for that behaviour. First, the thumbnail is not present in the picture, usually because the app that created the picture didn't add a thumbnail. Second, there is a thumbnail but it is ignored because some EXIF tags are missing. <b>Features</b> - Add thumbnail to pictures (JPEG) that don't yet have one - Lanczos algorithm to downsample picture thanks to [FFmpeg's swscale library][2] for best results. - Select one or more folders to scan from any storage (internal, SDCard...). For example DCIM, Pictures... - Exclude one subdirectory from selected directories - Preserve timestamps of the pictures - Processing log - Synchronize deleted files in the source directory to the backup and working directory (so that you don't keep in the backup folder pictures you don't have anymore in the source folder) - Conservative default options (backup pictures, skip corrupt files) - Install app on internal storage or external storage - Default EXIF library: [Exiv2][3]. - Alternative libraries: Android-Exif-Extended, libexif, pixymeta-android. See known facts on project page to learn more on benefits and drawbacks of each library. - Settings: &emsp;- Rotate the thumbnail &emsp;- Replace existing thumbnail &emsp;- Backup of original pictures (backup is never overwritten by the app once created if you choose to add the thumbnail to the input file in its initial location) &emsp;- Skip pictures having malformed metadata (this can be disabled to process also files having corrupt tags) &emsp;- Replace picture in place or write new picture to another directory <b>Requested permissions</b> - <i>WRITE_EXTERNAL_STORAGE</i>, <i>READ_EXTERNAL_STORAGE</i>, <i>READ_MEDIA_IMAGES</i> - <i>MANAGE_EXTERNAL_STORAGE</i> - <i>ACCESS_MEDIA_LOCATION</i> - <i>POST_NOTIFICATIONS</i> - <i>FOREGROUND_SERVICE_DATA_SYNC</i> - get more details on the project homepage <b>Installation</b> - Prerequisites: minimum android Oreo (android 8, SDK 26). - Download it through F-Droid app [here][4] - Download the APK from the [release page][5] <b>License</b> GPL-3.0 (see "COPYING" file on project homepage) <b>URLs</b> - [1]: <a href="https://github.com/tenzap/exif-thumbnail-adder">https://github.com/tenzap/exif-thumbnail-adder</a> - [2]: <a href="https://ffmpeg.org/libswscale.html">https://ffmpeg.org/libswscale.html</a> - [3]: <a href="https://www.exiv2.org">https://www.exiv2.org</a> - [4]: <a href="https://f-droid.org/packages/com.exifthumbnailadder.app">https://f-droid.org/packages/com.exifthumbnailadder.app</a> - [5]: <a href="https://github.com/tenzap/exif-thumbnail-adder/releases">https://github.com/tenzap/exif-thumbnail-adder/releases</a>

publisher

78ce6faa72264387284e647ba6938995735ec8c7d5c5a65737e55130f026307d

first seen

2026-10-07T23:58:36.382020+00:00

last event

2026-10-07 23:58 UTC

install

zapstore.dev or any Zapstore-compatible client

source & build

repository

https://github.com/tenzap/exif-thumbnail-adder

arch flags

android-arm64-v8a android-armeabi-v7a android-x86 android-x86_64

manifest

not fetched yet

releases (kind 30063)

1 release indexed; latest 1.0.1.

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

1.0.1 — exifthumbnailadder-1.0.1-standard-release.ForGooglePlay.apk

sha256

d0689aa1f2e77f90d56ecf2c3ab58051eb8429f98c5e7c6178788ddc8e8454ab

size

24.6 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

767

apk cert sha256

69b326aaf4ea659966016ba932d70d2da7ed49a89e00b7cfababb6f90fc41304

download

exifthumbnailadder-1.0.1-standard-release.ForGooglePlay.apk

Showing the newest 1 asset descriptor; the full set is in /api/apps/78ce6faa…