diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip94FileMetadata/tags/DimensionTag.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip94FileMetadata/tags/DimensionTag.kt
index 098957f44e..0ec356b6d3 100644
--- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip94FileMetadata/tags/DimensionTag.kt
+++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip94FileMetadata/tags/DimensionTag.kt
@@ -56,8 +56,11 @@ class DimensionTag(
             if (parts.size != 2) return null
 
             return try {
-                val width = parts[0].toInt()
-                val height = parts[1].toInt()
+                // Some clients (e.g. Primal) emit floating-point dimensions like "317.0x498.0"
+                // in NIP-92 imeta tags. Parse as Double and truncate to keep those tags usable
+                // for pre-load layout reservation.
+                val width = parts[0].toDouble().toInt()
+                val height = parts[1].toDouble().toInt()
 
                 DimensionTag(width, height)
             } catch (e: Exception) {
diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip94FileMetadata/tags/DimensionTagTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip94FileMetadata/tags/DimensionTagTest.kt
new file mode 100644
index 0000000000..e97ecbf833
--- /dev/null
+++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip94FileMetadata/tags/DimensionTagTest.kt
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.quartz.nip94FileMetadata.tags
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertNotNull
+import kotlin.test.assertNull
+
+class DimensionTagTest {
+    @Test
+    fun parsesIntegerDimensions() {
+        val tag = DimensionTag.parse("317x498")
+        assertNotNull(tag)
+        assertEquals(317, tag.width)
+        assertEquals(498, tag.height)
+    }
+
+    @Test
+    fun parsesFloatDimensionsFromPrimal() {
+        // Regression: kind:1 notes from Primal-style clients ship floating-point dims in
+        // their imeta tag (e.g. "dim 317.0x498.0"). Before this was tolerated the value
+        // parsed to null, the GIF/image container lost its aspectRatio modifier, and the
+        // post body collapsed to zero height until Coil delivered the bitmap.
+        val tag = DimensionTag.parse("317.0x498.0")
+        assertNotNull(tag)
+        assertEquals(317, tag.width)
+        assertEquals(498, tag.height)
+    }
+
+    @Test
+    fun truncatesNonIntegerFloats() {
+        val tag = DimensionTag.parse("317.9x498.4")
+        assertNotNull(tag)
+        assertEquals(317, tag.width)
+        assertEquals(498, tag.height)
+    }
+
+    @Test
+    fun rejectsZeroByZero() {
+        assertNull(DimensionTag.parse("0x0"))
+    }
+
+    @Test
+    fun rejectsMalformed() {
+        assertNull(DimensionTag.parse("not-a-dim"))
+        assertNull(DimensionTag.parse("317"))
+        assertNull(DimensionTag.parse("317x"))
+    }
+
+    @Test
+    fun aspectRatioMatchesPrimalGif() {
+        val tag = DimensionTag.parse("317.0x498.0")
+        assertNotNull(tag)
+        assertEquals(317f / 498f, tag.aspectRatio())
+    }
+}