diff --git a/API.md b/API.md
index 022db8894..0c8ba3877 100644
--- a/API.md
+++ b/API.md
@@ -457,13 +457,12 @@ View API token in <kbd>Settings - About</kbd>, request header: `Authorization: T
 * `/api/asset/upload`
 * The parameter is an HTTP Multipart form
 
-    * `assetsDirPath`: The folder path where the assets are stored. The arguments have the following three cases
+    * `assetsDirPath`: The folder path where assets are stored, with the data folder as the root path, for example:
+        * `"/assets/"`: workspace/data/assets/ folder
+        * `"/assets/sub/"`: workspace/data/assets/sub/ folder
 
-        1. `"/assets/"`: Workspace/data/assets folder
-        2. `"/Test Notebook/assets/"`: Assets folder under `Test Notebook`
-        3. `"/Test Notebook/foo/assets/"`: Assets folder under foo folder under `Test notebook`
-
-      It is recommended to use the first one, which is stored in the workspace assets folder uniformly.
+      Under normal circumstances, it is recommended to use the first method, which is stored in the assets folder
+      of the workspace.
     * `file[]`: Uploaded file list
 * Return value
 
@@ -705,7 +704,7 @@ View API token in <kbd>Settings - About</kbd>, request header: `Authorization: T
   }
   ```
 
-  * `id`: ID of the block to be got
+    * `id`: ID of the block to be got
 * Return value
 
   ```json
@@ -718,7 +717,7 @@ View API token in <kbd>Settings - About</kbd>, request header: `Authorization: T
     }
   }
   ```
-  
+
 ## Attributes
 
 ### Set block attributes
@@ -814,8 +813,9 @@ View API token in <kbd>Settings - About</kbd>, request header: `Authorization: T
     "path": "F:\\SiYuan\\data\\templates\\foo.md"
   }
   ```
-  * `id`: The ID of the document where the rendering is called
-  * `path`: Template file absolute path
+
+    * `id`: The ID of the document where the rendering is called
+    * `path`: Template file absolute path
 * Return value
 
   ```json
diff --git a/API_zh_CN.md b/API_zh_CN.md
index 93c83d82b..c77c5818b 100644
--- a/API_zh_CN.md
+++ b/API_zh_CN.md
@@ -454,13 +454,11 @@
 * `/api/asset/upload`
 * 参数为 HTTP Multipart 表单
 
-    * `assetsDirPath`：资源文件存放的文件夹路径，实参有以下三种情况
+    * `assetsDirPath`：资源文件存放的文件夹路径，以 data 文件夹作为根路径，比如：
+        * `"/assets/"`：工作空间/data/assets/ 文件夹
+        * `"/assets/sub/"`：工作空间/data/assets/sub/ 文件夹
 
-        1. `"/assets/"`：工作空间/data/assets 文件夹
-        2. `"/测试笔记本/assets/"`：`测试笔记本`下的 assets 文件夹
-        3. `"/测试笔记本/foo/assets/"`：`测试笔记本`下 foo 文件夹下的 assets 文件夹
-
-      建议用第一种，统一存放到工作空间资源文件夹下。
+      常规情况下建议用第一种，统一存放到工作空间资源文件夹下。
     * `file[]`：上传的文件列表
 * 返回值
 
diff --git a/app/appearance/langs/en_US.json b/app/appearance/langs/en_US.json
index 62500b459..887d2eec5 100644
--- a/app/appearance/langs/en_US.json
+++ b/app/appearance/langs/en_US.json
@@ -199,9 +199,10 @@
   "exportPDF1": "Landscape page",
   "exportPDF2": "Page margins",
   "exportPDF3": "Page Scale",
-  "exportPDF4": "Remove assets directory",
+  "exportPDF4": "Embed assets",
   "exportPDF5": "Keep folded",
-  "exportPDF6": "Merge subdocuments",
+  "mergeSubdocs": "Merge subdocuments",
+  "removeAssetsFolder": "Remove assets directory",
   "upload": "Upload",
   "reminderTip": "The reminder time cannot be less than the current time",
   "wechatTip": "The content block will be sent to the cloud in clear text, and pushed through the WeChat MP template message when it expires",
diff --git a/app/appearance/langs/es_ES.json b/app/appearance/langs/es_ES.json
index ba8eba908..a99a523d4 100644
--- a/app/appearance/langs/es_ES.json
+++ b/app/appearance/langs/es_ES.json
@@ -199,9 +199,10 @@
   "exportPDF1": "Página apaisada",
   "exportPDF2": "Márgenes de la página",
   "exportPDF3": "Escala de la página",
-  "exportPDF4": "Eliminar directorio de activos",
+  "exportPDF4": "Activos incrustados",
   "exportPDF5": "Mantener doblado",
-  "exportPDF6": "Fusionar subdocumentos",
+  "mergeSubdocs": "Fusionar subdocumentos",
+  "removeAssetsFolder": "Eliminar directorio de activos",
   "upload": "Subir",
   "reminderTip": "La hora del recordatorio no puede ser inferior a la hora actual",
   "wechatTip": "El bloque de contenido se enviará a la nube en texto claro, y se empujará a través del mensaje de plantilla de WeChat MP cuando caduque",
diff --git a/app/appearance/langs/fr_FR.json b/app/appearance/langs/fr_FR.json
index 9ecc80ca4..d684b5c9e 100644
--- a/app/appearance/langs/fr_FR.json
+++ b/app/appearance/langs/fr_FR.json
@@ -199,9 +199,10 @@
   "exportPDF1": "Page paysage",
   "exportPDF2": "Marges de page",
   "exportPDF3": "Échelle de page",
-  "exportPDF4": "Supprimer le répertoire des actifs",
+  "exportPDF4": "Incorporer des ressources",
   "exportPDF5": "Garder plié",
-  "exportPDF6": "Fusionner les sous-documents",
+  "mergeSubdocs": "Fusionner les sous-documents",
+  "removeAssetsFolder": "Supprimer le répertoire des actifs",
   "upload": "Télécharger",
   "reminderTip": "The reminder time cannot be less than the current time",
   "wechatTip": "Le bloc de contenu sera envoyé au cloud en texte clair et transmis au message du modèle de compte officiel WeChat à son expiration.",
diff --git a/app/appearance/langs/zh_CHT.json b/app/appearance/langs/zh_CHT.json
index 598868c1b..bcff17a8d 100644
--- a/app/appearance/langs/zh_CHT.json
+++ b/app/appearance/langs/zh_CHT.json
@@ -199,9 +199,10 @@
   "exportPDF1": "橫向頁面",
   "exportPDF2": "頁面邊距",
   "exportPDF3": "頁面縮放",
-  "exportPDF4": "移除 assets 目錄",
+  "exportPDF4": "嵌入資源文件",
   "exportPDF5": "保持折疊狀態",
-  "exportPDF6": "合併子文檔",
+  "mergeSubdocs": "合併子文檔",
+  "removeAssetsFolder": "移除 assets 目錄",
   "upload": "上傳",
   "reminderTip": "提醒時間不能小於當前時間",
   "wechatTip": "該內容塊將以明文形式發送到雲端，到期時通過微信公眾號模板消息進行推送",
diff --git a/app/appearance/langs/zh_CN.json b/app/appearance/langs/zh_CN.json
index 5202f15a6..c166b2ee0 100644
--- a/app/appearance/langs/zh_CN.json
+++ b/app/appearance/langs/zh_CN.json
@@ -199,9 +199,10 @@
   "exportPDF1": "横向页面",
   "exportPDF2": "页面边距",
   "exportPDF3": "页面缩放",
-  "exportPDF4": "移除 assets 目录",
+  "exportPDF4": "嵌入资源文件",
   "exportPDF5": "保持折叠状态",
-  "exportPDF6": "合并子文档",
+  "mergeSubdocs": "合并子文档",
+  "removeAssetsFolder": "移除 assets 目录",
   "upload": "上传",
   "reminderTip": "提醒时间不能小于当前时间",
   "wechatTip": "该内容块将以明文形式发送到云端，到期时通过微信公众号模板消息进行推送",
diff --git a/app/src/protyle/export/index.ts b/app/src/protyle/export/index.ts
index e92cf3c1d..1bba90468 100644
--- a/app/src/protyle/export/index.ts
+++ b/app/src/protyle/export/index.ts
@@ -1,7 +1,7 @@
 import {hideMessage, showMessage} from "../../dialog/message";
 import {Constants} from "../../constants";
 /// #if !BROWSER
-import {OpenDialogReturnValue, ipcRenderer} from "electron";
+import {ipcRenderer, OpenDialogReturnValue} from "electron";
 import {app, BrowserWindow, dialog, getCurrentWindow} from "@electron/remote";
 import * as fs from "fs";
 import * as path from "path";
@@ -33,14 +33,14 @@ export const saveExport = (option: { type: string, id: string }) => {
             content: `<div class="b3-dialog__content">
     <label class="fn__flex b3-label">
         <div class="fn__flex-1">
-            ${window.siyuan.languages.exportPDF4}
+            ${window.siyuan.languages.removeAssetsFolder}
         </div>
         <span class="fn__space"></span>
         <input id="removeAssets" class="b3-switch" type="checkbox" ${localData.removeAssets ? "checked" : ""}>
     </label>
     <label class="fn__flex b3-label">
         <div class="fn__flex-1">
-            ${window.siyuan.languages.exportPDF6}
+            ${window.siyuan.languages.mergeSubdocs}
         </div>
         <span class="fn__space"></span>
         <input id="mergeSubdocs" class="b3-switch" type="checkbox" ${localData.mergeSubdocs ? "checked" : ""}>
@@ -215,7 +215,7 @@ const renderPDF = (id: string) => {
     </label>
     <label class="b3-label">
         <div>
-            ${window.siyuan.languages.exportPDF6}
+            ${window.siyuan.languages.mergeSubdocs}
         </div>
         <span class="fn__hr"></span>
         <input id="mergeSubdocs" class="b3-switch" type="checkbox" ${localData.mergeSubdocs ? "checked" : ""}>
diff --git a/app/src/util/onGetConfig.ts b/app/src/util/onGetConfig.ts
index 054e251dc..db7b34fcb 100644
--- a/app/src/util/onGetConfig.ts
+++ b/app/src/util/onGetConfig.ts
@@ -3,7 +3,7 @@ import {exportLayout, getInstanceById, JSONToLayout, resetLayout, resizeDrag, re
 import {hotKey2Electron, setStorageVal, updateHotkeyTip} from "../protyle/util/compatibility";
 /// #if !BROWSER
 import {dialog, getCurrentWindow} from "@electron/remote";
-import {webFrame, ipcRenderer, OpenDialogReturnValue} from "electron";
+import {ipcRenderer, OpenDialogReturnValue, webFrame} from "electron";
 import * as fs from "fs";
 import * as path from "path";
 import {afterExport} from "../protyle/export/util";
@@ -418,10 +418,11 @@ export const initWindow = () => {
                         const pdfFilePath = path.join(result.filePaths[0], replaceLocalPath(ipcData.rootTitle) + ".pdf");
                         fs.writeFileSync(pdfFilePath, pdfData);
                         window.siyuan.printWin.destroy();
-                        fetchPost("/api/export/addPDFOutline", {
+                        fetchPost("/api/export/processPDF", {
                             id: ipcData.rootId,
                             merge: ipcData.mergeSubdocs,
-                            path: pdfFilePath
+                            path: pdfFilePath,
+                            removeAssets: ipcData.removeAssets,
                         }, () => {
                             afterExport(pdfFilePath, msgId);
                             if (ipcData.removeAssets) {
diff --git a/kernel/api/export.go b/kernel/api/export.go
index 1985d5eef..602fa033f 100644
--- a/kernel/api/export.go
+++ b/kernel/api/export.go
@@ -311,7 +311,7 @@ func exportHTML(c *gin.Context) {
 	}
 }
 
-func addPDFOutline(c *gin.Context) {
+func processPDF(c *gin.Context) {
 	ret := gulu.Ret.NewResult()
 	defer c.JSON(http.StatusOK, ret)
 
@@ -326,7 +326,8 @@ func addPDFOutline(c *gin.Context) {
 	if nil != arg["merge"] {
 		merge = arg["merge"].(bool)
 	}
-	err := model.AddPDFOutline(id, path, merge)
+	removeAssets := arg["removeAssets"].(bool)
+	err := model.ProcessPDF(id, path, merge, removeAssets)
 	if nil != err {
 		ret.Code = -1
 		ret.Msg = err.Error()
diff --git a/kernel/api/router.go b/kernel/api/router.go
index eaf1eec5c..84cfd2191 100644
--- a/kernel/api/router.go
+++ b/kernel/api/router.go
@@ -233,7 +233,7 @@ func ServeAPI(ginServer *gin.Engine) {
 	ginServer.Handle("POST", "/api/export/exportPreviewHTML", model.CheckAuth, exportPreviewHTML)
 	ginServer.Handle("POST", "/api/export/exportMdHTML", model.CheckAuth, exportMdHTML)
 	ginServer.Handle("POST", "/api/export/exportDocx", model.CheckAuth, exportDocx)
-	ginServer.Handle("POST", "/api/export/addPDFOutline", model.CheckAuth, addPDFOutline)
+	ginServer.Handle("POST", "/api/export/processPDF", model.CheckAuth, processPDF)
 	ginServer.Handle("POST", "/api/export/preview", model.CheckAuth, exportPreview)
 	ginServer.Handle("POST", "/api/export/exportAsFile", model.CheckAuth, exportAsFile)
 	ginServer.Handle("POST", "/api/export/exportData", model.CheckAuth, exportData)
diff --git a/kernel/go.mod b/kernel/go.mod
index cdb28a6f5..f52c69d5b 100644
--- a/kernel/go.mod
+++ b/kernel/go.mod
@@ -7,7 +7,7 @@ require (
 	github.com/88250/css v0.1.2
 	github.com/88250/gulu v1.2.3-0.20221117052724-cd06804db798
 	github.com/88250/lute v1.7.6-0.20230220030205-b0f64d7ba66e
-	github.com/88250/pdfcpu v0.3.13
+	github.com/88250/pdfcpu v0.3.14-0.20230223031826-d2ae187e1c38
 	github.com/88250/vitess-sqlparser v0.0.0-20210205111146-56a2ded2aba1
 	github.com/ClarkThan/ahocorasick v0.0.0-20230216061320-bccdb98581a3
 	github.com/ConradIrwin/font v0.0.0-20210318200717-ce8d41cc0732
diff --git a/kernel/go.sum b/kernel/go.sum
index cb44b26c3..cfc52a2ba 100644
--- a/kernel/go.sum
+++ b/kernel/go.sum
@@ -10,8 +10,8 @@ github.com/88250/gulu v1.2.3-0.20221117052724-cd06804db798 h1:sR/s/Y9wyl79ZRCUER
 github.com/88250/gulu v1.2.3-0.20221117052724-cd06804db798/go.mod h1:I1qBzsksFL2ciGSuqDE7R3XW4BUMrfDgOvSXEk7FsAI=
 github.com/88250/lute v1.7.6-0.20230220030205-b0f64d7ba66e h1:7UgFzsksh+z6IX2z+BKG3tt1TU7LJNb0zOHDbhLEaUc=
 github.com/88250/lute v1.7.6-0.20230220030205-b0f64d7ba66e/go.mod h1:cEoBGi0zArPqAsp0MdG9SKinvH/xxZZWXU7sRx8vHSA=
-github.com/88250/pdfcpu v0.3.13 h1:touMWMZkCGalMIbEg9bxYp7rETM+zwb9hXjwhqi4I7Q=
-github.com/88250/pdfcpu v0.3.13/go.mod h1:S5YT38L/GCjVjmB4PB84PymA1qfopjEhfhTNQilLpv4=
+github.com/88250/pdfcpu v0.3.14-0.20230223031826-d2ae187e1c38 h1:MaFRabDTXOpLBrdP4qkZnjFBIUTu/rk8S6fu7hC6jCY=
+github.com/88250/pdfcpu v0.3.14-0.20230223031826-d2ae187e1c38/go.mod h1:S5YT38L/GCjVjmB4PB84PymA1qfopjEhfhTNQilLpv4=
 github.com/88250/vitess-sqlparser v0.0.0-20210205111146-56a2ded2aba1 h1:48T899JQDwyyRu9yXHePYlPdHtpJfrJEUGBMH3SMBWY=
 github.com/88250/vitess-sqlparser v0.0.0-20210205111146-56a2ded2aba1/go.mod h1:U3pckKQIgxxkmZjV5yXQjHdGxQK0o/vEZeZ6cQsxfHw=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
diff --git a/kernel/model/export.go b/kernel/model/export.go
index e7642445c..b1a14c1c9 100644
--- a/kernel/model/export.go
+++ b/kernel/model/export.go
@@ -654,7 +654,7 @@ func processIFrame(tree *parse.Tree) {
 	}
 }
 
-func AddPDFOutline(id, p string, merge bool) (err error) {
+func ProcessPDF(id, p string, merge, removeAssets bool) (err error) {
 	inFile := p
 	links, err := api.ListToCLinks(inFile)
 	if nil != err {
@@ -764,36 +764,220 @@ func AddPDFOutline(id, p string, merge bool) (err error) {
 		}
 	}
 
-	//var assetAbsPaths []string
-	//for _, dest := range assetDests {
-	//	absPath, _ := GetAssetAbsPath(dest)
-	//	if "" != absPath {
-	//		assetAbsPaths = append(assetAbsPaths, absPath)
-	//	}
-	//}
-	//
-	//if 0 < len(assetAbsPaths) {
-	//	outFile := inFile + ".tmp"
-	//	err = api.AddAttachmentsFile(inFile, outFile, assetAbsPaths, false, nil)
-	//	if nil != err {
-	//		logging.LogErrorf("add attachment failed: %s", err)
-	//		return
-	//	}
-	//
-	//	err = os.Rename(outFile, inFile)
-	//	if nil != err {
-	//		return
-	//	}
-	//}
-	//
-	//assetLinks, err := api.ListAssetLinks(inFile)
-	//if nil == err {
-	//	logging.LogInfof("pdf annotation: %+v", assetLinks)
-	//}
+	var assetAbsPaths []string
+	for _, dest := range assetDests {
+		absPath, _ := GetAssetAbsPath(dest)
+		if "" != absPath {
+			assetAbsPaths = append(assetAbsPaths, absPath)
+		}
+	}
+
+	pdfCtx, ctxErr := api.ReadContextFile(inFile)
+	if nil != ctxErr {
+		logging.LogErrorf("read pdf context failed: %s", ctxErr)
+		return
+	}
+
+	if 0 < len(assetAbsPaths) {
+		assetLinks, otherLinks, listErr := api.ListLinks(inFile)
+		if nil != listErr {
+			logging.LogErrorf("list asset links failed: %s", listErr)
+			return
+		}
+
+		if _, removeErr := pdfCtx.RemoveAnnotations(nil, nil, nil, false); nil != removeErr {
+			logging.LogWarnf("remove annotations failed: %s", removeErr)
+		}
+
+		linkMap := map[int][]pdfcpu.AnnotationRenderer{}
+		for _, link := range otherLinks {
+			link.URI, _ = url.PathUnescape(link.URI)
+			if 1 > len(linkMap[link.Page]) {
+				linkMap[link.Page] = []pdfcpu.AnnotationRenderer{link}
+			} else {
+				linkMap[link.Page] = append(linkMap[link.Page], link)
+			}
+		}
+
+		attachmentMap := map[int][]*pdfcpu.IndirectRef{}
+		now := pdfcpu.StringLiteral(pdfcpu.DateString(time.Now()))
+		for _, link := range assetLinks {
+			link.URI = strings.ReplaceAll(link.URI, "http://127.0.0.1:6806/export/temp/", "")
+			link.URI, _ = url.PathUnescape(link.URI)
+
+			if !removeAssets {
+				// 不移除资源文件夹的话将超链接指向资源文件夹
+				if 1 > len(linkMap[link.Page]) {
+					linkMap[link.Page] = []pdfcpu.AnnotationRenderer{link}
+				} else {
+					linkMap[link.Page] = append(linkMap[link.Page], link)
+				}
+
+				continue
+			}
+
+			// 移除资源文件夹的话使用内嵌附件
+
+			absPath, getErr := GetAssetAbsPath(link.URI)
+			if nil != getErr {
+				continue
+			}
+
+			ir, newErr := pdfCtx.XRefTable.NewEmbeddedFileStreamDict(absPath)
+			if nil != newErr {
+				logging.LogWarnf("new embedded file stream dict failed: %s", newErr)
+				continue
+			}
+
+			fn := filepath.Base(absPath)
+			fileSpecDict, newErr := pdfCtx.XRefTable.NewFileSpecDict(fn, pdfcpu.EncodeUTF16String(fn), "attached by SiYuan", *ir)
+			if nil != newErr {
+				logging.LogWarnf("new file spec dict failed: %s", newErr)
+				continue
+			}
+
+			ir, indErr := pdfCtx.XRefTable.IndRefForNewObject(fileSpecDict)
+			if nil != indErr {
+				logging.LogWarnf("ind ref for new object failed: %s", indErr)
+				continue
+			}
+
+			lx := link.Rect.LL.X + link.Rect.Width()
+			ly := link.Rect.LL.Y + link.Rect.Height()/2
+			ux := lx + link.Rect.Height()/2
+			uy := ly + link.Rect.Height()/2
+
+			d := pdfcpu.Dict(
+				map[string]pdfcpu.Object{
+					"Type":         pdfcpu.Name("Annot"),
+					"Subtype":      pdfcpu.Name("FileAttachment"),
+					"Contents":     pdfcpu.StringLiteral(""),
+					"Rect":         pdfcpu.Rect(lx, ly, ux, uy).Array(),
+					"P":            link.P,
+					"M":            now,
+					"F":            pdfcpu.Integer(0),
+					"Border":       pdfcpu.NewIntegerArray(0, 0, 1),
+					"C":            pdfcpu.NewNumberArray(0.5, 0.0, 0.5),
+					"CA":           pdfcpu.Float(0.95),
+					"CreationDate": now,
+					"Name":         pdfcpu.Name("FileAttachment"),
+					"FS":           *ir,
+					"NM":           pdfcpu.StringLiteral(""),
+				},
+			)
+
+			ann, indErr := pdfCtx.XRefTable.IndRefForNewObject(d)
+			if nil != indErr {
+				logging.LogWarnf("ind ref for new object failed: %s", indErr)
+				continue
+			}
+
+			pageDictIndRef, pageErr := pdfCtx.PageDictIndRef(link.Page)
+			if nil != pageErr {
+				logging.LogWarnf("page dict ind ref failed: %s", pageErr)
+				continue
+			}
+
+			d, defErr := pdfCtx.DereferenceDict(*pageDictIndRef)
+			if nil != defErr {
+				logging.LogWarnf("dereference dict failed: %s", defErr)
+				continue
+			}
+
+			if 1 > len(attachmentMap[link.Page]) {
+				attachmentMap[link.Page] = []*pdfcpu.IndirectRef{ann}
+			} else {
+				attachmentMap[link.Page] = append(attachmentMap[link.Page], ann)
+			}
+		}
+
+		if 0 < len(linkMap) {
+			if _, addErr := pdfCtx.AddAnnotationsMap(linkMap, false); nil != addErr {
+				logging.LogErrorf("add annotations map failed: %s", addErr)
+			}
+		}
+
+		// 添加附件注解指向内嵌的附件
+		for page, anns := range attachmentMap {
+			pageDictIndRef, pageErr := pdfCtx.PageDictIndRef(page)
+			if nil != pageErr {
+				logging.LogWarnf("page dict ind ref failed: %s", pageErr)
+				continue
+			}
+
+			pageDict, defErr := pdfCtx.DereferenceDict(*pageDictIndRef)
+			if nil != defErr {
+				logging.LogWarnf("dereference dict failed: %s", defErr)
+				continue
+			}
+
+			array := pdfcpu.Array{}
+			for _, ann := range anns {
+				array = append(array, *ann)
+			}
+
+			obj, found := pageDict.Find("Annots")
+			if !found {
+				pageDict.Insert("Annots", array)
+				pdfCtx.EnsureVersionForWriting()
+				continue
+			}
+
+			ir, ok := obj.(pdfcpu.IndirectRef)
+			if !ok {
+				pageDict.Update("Annots", append(obj.(pdfcpu.Array), array...))
+				pdfCtx.EnsureVersionForWriting()
+				continue
+			}
+
+			// Annots array is an IndirectReference.
+
+			o, err := pdfCtx.Dereference(ir)
+			if err != nil || o == nil {
+				continue
+			}
+
+			annots, _ := o.(pdfcpu.Array)
+			entry, ok := pdfCtx.FindTableEntryForIndRef(&ir)
+			if !ok {
+				continue
+			}
+			entry.Object = append(annots, array...)
+			pdfCtx.EnsureVersionForWriting()
+		}
+	}
+
+	pdfcpu.VersionStr = "SiYuan v" + util.Ver
+	if writeErr := api.WriteContextFile(pdfCtx, inFile); nil != writeErr {
+		logging.LogErrorf("write pdf context failed: %s", writeErr)
+		return
+	}
 
 	return
 }
 
+func annotRect(i int, w, h, d, l float64) *pdfcpu.Rectangle {
+	// d..distance between annotation rectangles
+	// l..side length of rectangle
+
+	// max number of rectangles fitting into w
+	xmax := int((w - d) / (l + d))
+
+	// max number of rectangles fitting into h
+	ymax := int((h - d) / (l + d))
+
+	col := float64(i % xmax)
+	row := float64(i / xmax % ymax)
+
+	llx := d + col*(l+d)
+	lly := d + row*(l+d)
+
+	urx := llx + l
+	ury := lly + l
+
+	return pdfcpu.Rect(llx, lly, urx, ury)
+}
+
 func ExportStdMarkdown(id string) string {
 	tree, err := loadTreeByBlockID(id)
 	if nil != err {
diff --git a/kernel/model/flashcard.go b/kernel/model/flashcard.go
index 4d55ccd6c..3d118b860 100644
--- a/kernel/model/flashcard.go
+++ b/kernel/model/flashcard.go
@@ -674,6 +674,10 @@ func GetDecks() (decks []*riff.Deck) {
 	if 1 > len(decks) {
 		decks = []*riff.Deck{}
 	}
+
+	sort.Slice(decks, func(i, j int) bool {
+		return decks[i].Updated > decks[j].Updated
+	})
 	return
 }
 
diff --git a/kernel/model/upload.go b/kernel/model/upload.go
index 1dfaff11e..a3456263b 100644
--- a/kernel/model/upload.go
+++ b/kernel/model/upload.go
@@ -130,9 +130,11 @@ func Upload(c *gin.Context) {
 		docDirLocalPath := filepath.Join(util.DataDir, bt.BoxID, path.Dir(bt.Path))
 		assetsDirPath = getAssetsDir(filepath.Join(util.DataDir, bt.BoxID), docDirLocalPath)
 	}
+
+	relAssetsDirPath := "assets"
 	if nil != form.Value["assetsDirPath"] {
-		assetsDirPath = form.Value["assetsDirPath"][0]
-		assetsDirPath = filepath.Join(util.DataDir, assetsDirPath)
+		relAssetsDirPath = form.Value["assetsDirPath"][0]
+		assetsDirPath = filepath.Join(util.DataDir, relAssetsDirPath)
 	}
 	if !gulu.File.IsExist(assetsDirPath) {
 		if err = os.MkdirAll(assetsDirPath, 0755); nil != err {
@@ -187,7 +189,7 @@ func Upload(c *gin.Context) {
 				break
 			}
 			f.Close()
-			succMap[baseName] = "assets/" + fName
+			succMap[baseName] = path.Join(relAssetsDirPath, fName)
 		}
 	}