diff --git a/app/src/components/Archive.js b/app/src/components/Archive.js
index 6386a6cd..e8de0e7e 100644
--- a/app/src/components/Archive.js
+++ b/app/src/components/Archive.js
@@ -34,6 +34,7 @@ import {
     mimetypeColor,
     PageContainer,
     PreviewPath,
+    resolveDataPath,
     SearchInput,
     SortButton,
     TabLinks,
@@ -104,11 +105,16 @@ function ArchivePage() {
         </>
     }
 
-    const {data, size} = archiveFile;
+    const {data, size, directory} = archiveFile;
 
-    const singlefileUrl = data.singlefile_path ? `/media/${encodeMediaPath(data.singlefile_path)}` : null;
-    const readabilityUrl = data.readability_path ? `/media/${encodeMediaPath(data.readability_path)}` : null;
-    const screenshotUrl = data.screenshot_path ? `/media/${encodeMediaPath(data.screenshot_path)}` : null;
+    // Resolve data paths (filename-only) to full relative paths using directory
+    const singlefilePath = resolveDataPath(data.singlefile_path, directory);
+    const readabilityPath = resolveDataPath(data.readability_path, directory);
+    const screenshotPath = resolveDataPath(data.screenshot_path, directory);
+
+    const singlefileUrl = singlefilePath ? `/media/${encodeMediaPath(singlefilePath)}` : null;
+    const readabilityUrl = readabilityPath ? `/media/${encodeMediaPath(readabilityPath)}` : null;
+    const screenshotUrl = screenshotPath ? `/media/${encodeMediaPath(screenshotPath)}` : null;
 
     const singlefileButton = <ExternalCardLink to={singlefileUrl}>
         <Button content='View' color='violet'/>
@@ -235,9 +241,11 @@ function ArchivePage() {
         </Tab.Pane>
     };
 
-    const localPreviewPath = (path, mimetype) => {
-        if (path) {
-            return <PreviewPath path={path} mimetype={mimetype} taggable={false}>{path}</PreviewPath>
+    // Helper to resolve and preview a data path
+    const localPreviewPath = (dataPath, mimetype) => {
+        const resolvedPath = resolveDataPath(dataPath, directory);
+        if (resolvedPath) {
+            return <PreviewPath path={resolvedPath} mimetype={mimetype} taggable={false}>{resolvedPath}</PreviewPath>
         } else {
             return 'Unknown'
         }
@@ -258,8 +266,8 @@ function ArchivePage() {
             {localPreviewPath(data.readability_json_path, 'application/json')}
 
             <Header as={'h3'}>Screenshot File</Header>
-            {data.screenshot_path ?
-                archiveFileLink(data.screenshot_path)
+            {screenshotPath ?
+                archiveFileLink(screenshotPath)
                 : 'Unknown'}
 
             <Header as={'h3'}>Directory</Header>
@@ -321,10 +329,14 @@ function ArchivePage() {
 
 export function ArchiveCard({file}) {
     const {s} = useContext(ThemeContext);
-    const {data} = file;
+    const {data, directory} = file;
 
-    const imageSrc = data.screenshot_path ? `/media/${encodeMediaPath(data.screenshot_path)}` : null;
-    const singlefileUrl = data.singlefile_path ? `/media/${encodeMediaPath(data.singlefile_path)}` : null;
+    // Resolve data paths (filename-only) to full relative paths using directory
+    const screenshotPath = resolveDataPath(data.screenshot_path, directory);
+    const singlefilePath = resolveDataPath(data.singlefile_path, directory);
+
+    const imageSrc = screenshotPath ? `/media/${encodeMediaPath(screenshotPath)}` : null;
+    const singlefileUrl = singlefilePath ? `/media/${encodeMediaPath(singlefilePath)}` : null;
 
     let screenshot = <Card.Icon><FileIcon file={file}/></Card.Icon>;
     const imageLabel = file.tags && file.tags.length ? taggedImageLabel : null;
diff --git a/app/src/components/Common.js b/app/src/components/Common.js
index 0b96b71e..44e88ac4 100644
--- a/app/src/components/Common.js
+++ b/app/src/components/Common.js
@@ -656,11 +656,27 @@ export function CardGroupCentered(props) {
     </div>
 }
 
+/**
+ * Resolve a filename-only path to a full relative path using the file's directory.
+ * Paths in FileGroup.data are stored as filenames only for performance (fast moves/renames).
+ * This function resolves them to full relative paths suitable for /media/ URLs.
+ *
+ * @param {string} path - The path to resolve (may be filename-only or already a full path)
+ * @param {string} directory - The directory to prepend if path is filename-only
+ * @returns {string|null} - The resolved path, or null if path is falsy
+ */
+export function resolveDataPath(path, directory) {
+    if (!path) return null;
+    if (path.includes('/')) return path;  // Already a full relative path
+    return directory ? `${directory}/${path}` : path;
+}
+
 export function findPosterPath(file) {
     if (!file) {
         return;
     }
-    const {files, poster_path, cover_path, screenshot_path, video} = file;
+    const {files, poster_path, cover_path, screenshot_path, video, directory} = file;
+
     if (poster_path) {
         return poster_path;
     }
@@ -670,18 +686,24 @@ export function findPosterPath(file) {
     if (screenshot_path) {
         return screenshot_path;
     }
-    if (file['data'] && file['data']['cover_path']) {
-        // Ebook.
-        return file['data']['cover_path'];
-    }
-    if (file['data'] && file['data']['poster_path']) {
-        // PDF.
-        return file['data']['poster_path'];
-    }
+    // video.poster_path is already a full relative path (from Video.__json__)
     if (video && video['poster_path']) {
-        // file is a video model.
         return video['poster_path'];
     }
+    // data paths are filename-only, need to resolve with directory
+    if (file['data'] && file['data']['cover_path']) {
+        // Ebook.
+        return resolveDataPath(file['data']['cover_path'], directory);
+    }
+    if (file['data'] && file['data']['poster_path']) {
+        // PDF or Video (cached).
+        return resolveDataPath(file['data']['poster_path'], directory);
+    }
+    if (file['data'] && file['data']['screenshot_path']) {
+        // Archive.
+        return resolveDataPath(file['data']['screenshot_path'], directory);
+    }
+    // files[].path is already resolved by my_files() on the backend
     if (!_.isEmpty(files)) {
         for (let i = 0; i < files.length; i++) {
             const file = files[i];
diff --git a/modules/videos/models.py b/modules/videos/models.py
index f344eea6..95b36af7 100644
--- a/modules/videos/models.py
+++ b/modules/videos/models.py
@@ -8,7 +8,8 @@ from sqlalchemy.orm.collections import InstrumentedList
 
 from modules.videos.errors import UnknownVideo, UnknownChannel
 from wrolpi.captions import read_captions
-from wrolpi.common import Base, ModelHelper, logger, get_media_directory, background_task, replace_file
+from wrolpi.common import Base, ModelHelper, logger, get_media_directory, get_relative_to_media_directory, \
+    background_task, replace_file
 from wrolpi.db import get_db_curs, get_db_session
 from wrolpi.downloader import Download
 from wrolpi.files.lib import refresh_files, split_path_stem_and_suffix
diff --git a/wrolpi/files/pdfs.py b/wrolpi/files/pdfs.py
index b39334d1..f8f38047 100644
--- a/wrolpi/files/pdfs.py
+++ b/wrolpi/files/pdfs.py
@@ -152,10 +152,11 @@ async def pdf_modeler():
                         file_group.model = 'pdf'
 
                         # Find an image with the same stem to use as the poster.
+                        # Store as filename only (consistent with other models, enables fast moves/renames).
                         poster_files = file_group.my_poster_files()
                         if poster_files:
                             file_group.data = file_group.data or {}
-                            file_group.data['poster_path'] = str(poster_files[0]['path'])
+                            file_group.data['poster_path'] = poster_files[0]['path'].name
                 except Exception as e:
                     logger.error(f'Failed to index PDF {pdf_file}', exc_info=e)
                     if PYTEST:
diff --git a/wrolpi/files/test/test_pdfs.py b/wrolpi/files/test/test_pdfs.py
index e5c069b3..9e0d2af1 100644
--- a/wrolpi/files/test/test_pdfs.py
+++ b/wrolpi/files/test/test_pdfs.py
@@ -90,5 +90,5 @@ async def test_pdf_poster(test_session, example_pdf):
     file_group = test_session.query(FileGroup).one()
     assert file_group.indexed is True
     assert file_group.data is not None
-    # FancyJSON converts paths back to pathlib.Path when reading from DB.
-    assert file_group.data.get('poster_path') == poster_path
+    # data['poster_path'] stores filename only (for fast moves/renames).
+    assert file_group.data.get('poster_path') == poster_path.name