diff --git a/lib/www/server/api/middleware/event/get/geojson.js b/lib/www/server/api/middleware/event/get/geojson.js
index 5b98068..5fbf8e7 100644
--- a/lib/www/server/api/middleware/event/get/geojson.js
+++ b/lib/www/server/api/middleware/event/get/geojson.js
@@ -18,6 +18,10 @@ const geojson = async function (req, res, next) {
 				return feature;
 			})
 		};
+		if ("download" in query || "d" in query) {
+			const filename = `${req.params.project}-seq${query.sequence.padStart(3, "0")}.geojson`;
+			res.set("Content-Disposition", `attachment; filename="${filename}"`);
+		}
 		res.status(200).send(response);
 		next();
 	} catch (err) {
diff --git a/lib/www/server/api/middleware/event/get/html.js b/lib/www/server/api/middleware/event/get/html.js
index fa67263..a398ca7 100644
--- a/lib/www/server/api/middleware/event/get/html.js
+++ b/lib/www/server/api/middleware/event/get/html.js
@@ -13,6 +13,11 @@ const html = async function (req, res, next) {
 		const template = templates[0].template;
 		
 		const response = await render(seis, template);
+		
+		if ("download" in query || "d" in query) {
+			const filename = `${req.params.project}-seq${query.sequence.padStart(3, "0")}.html`;
+			res.set("Content-Disposition", `attachment; filename="${filename}"`);
+		}
 		res.status(200).send(response);
 		next();
 	} catch (err) {
diff --git a/lib/www/server/api/middleware/event/get/json.js b/lib/www/server/api/middleware/event/get/json.js
index 8988a31..3848f2e 100644
--- a/lib/www/server/api/middleware/event/get/json.js
+++ b/lib/www/server/api/middleware/event/get/json.js
@@ -6,6 +6,10 @@ const json = async function (req, res, next) {
 		const query = req.query;
 		query.sequence = req.params.sequence;
 		const response = await event.list(req.params.project, query);
+		if ("download" in query || "d" in query) {
+			const filename = `${req.params.project}-seq${query.sequence.padStart(3, "0")}.json`;
+			res.set("Content-Disposition", `attachment; filename="${filename}"`);
+		}
 		res.status(200).send(response);
 		next();
 	} catch (err) {
diff --git a/lib/www/server/api/middleware/event/get/pdf.js b/lib/www/server/api/middleware/event/get/pdf.js
index 316b2a7..59a495c 100644
--- a/lib/www/server/api/middleware/event/get/pdf.js
+++ b/lib/www/server/api/middleware/event/get/pdf.js
@@ -26,6 +26,10 @@ const pdf = async function (req, res, next) {
 		await fs.writeFile(fname, html);
 		const pdf = Buffer.from(await url2pdf("file://"+fname), "base64");
 		
+		if ("download" in query || "d" in query) {
+			const filename = `${req.params.project}-seq${query.sequence.padStart(3, "0")}.pdf`;
+			res.set("Content-Disposition", `attachment; filename="${filename}"`);
+		}
 		res.status(200).send(pdf);
 		next();
 	} catch (err) {
diff --git a/lib/www/server/api/middleware/event/get/seis.js b/lib/www/server/api/middleware/event/get/seis.js
index 5d73862..655c81b 100644
--- a/lib/www/server/api/middleware/event/get/seis.js
+++ b/lib/www/server/api/middleware/event/get/seis.js
@@ -8,6 +8,10 @@ const seis = async function (req, res, next) {
 		const events = await event.list(req.params.project, query);
 		const sequences = await sequence.list(req.params.project, query);
 		const response = transform(events, sequences, {projectId: req.params.project});
+		if ("download" in query || "d" in query) {
+			const filename = `${req.params.project}-seq${query.sequence.padStart(3, "0")}.json`;
+			res.set("Content-Disposition", `attachment; filename="${filename}"`);
+		}
 		res.status(200).send(response);
 		next();
 	} catch (err) {