diff --git a/kernel/model/asset_content.go b/kernel/model/asset_content.go
index c5ac3c7d9..ff5c150ac 100644
--- a/kernel/model/asset_content.go
+++ b/kernel/model/asset_content.go
@@ -519,6 +519,7 @@ func (parser *TxtAssetParser) Parse(absPath string) (ret *AssetParseResult) {
 
 	if !utf8.Valid(data) {
 		// Non-UTF-8 encoded text files are not included in asset file content searching https://github.com/siyuan-note/siyuan/issues/9052
+		logging.LogWarnf("asset [%s] is not UTF-8 encoded", absPath)
 		return
 	}
 
@@ -808,6 +809,12 @@ func (parser *PdfAssetParser) Parse(absPath string) (ret *AssetParseResult) {
 	}
 	instance.Close()
 
+	if 1024 < pc.PageCount {
+		// PDF files longer than 1024 pages are not included in asset file content searching https://github.com/siyuan-note/siyuan/issues/9053
+		logging.LogWarnf("ignore large PDF asset [%s] with [%d] pages", absPath, pc.PageCount)
+		return
+	}
+
 	// next setup worker pool for processing PDF pages
 	pages := make(chan *pdfPage, pc.PageCount)
 	results := make(chan *pdfTextResult, pc.PageCount)