diff --git a/client.go b/client.go
index 8e0c20b..f5a999d 100644
--- a/client.go
+++ b/client.go
@@ -18,8 +18,8 @@ var (
 	errSendRequestFailed = errors.New("request sending failed")
 )
 
-// multipartRequester is a type for sending form fields and form files (documents) to the Gotenberg API.
-type multipartRequester interface {
+// MultipartRequester is a type for sending form fields and form files (documents) to the Gotenberg API.
+type MultipartRequester interface {
 	endpoint() string
 
 	baseRequester
@@ -48,11 +48,11 @@ func NewClient(hostname string, httpClient *http.Client) (*Client, error) {
 }
 
 // Send sends a request to the Gotenberg API and returns the response.
-func (c *Client) Send(ctx context.Context, req multipartRequester) (*http.Response, error) {
+func (c *Client) Send(ctx context.Context, req MultipartRequester) (*http.Response, error) {
 	return c.send(ctx, req)
 }
 
-func (c *Client) send(ctx context.Context, r multipartRequester) (*http.Response, error) {
+func (c *Client) send(ctx context.Context, r MultipartRequester) (*http.Response, error) {
 	req, err := c.createRequest(ctx, r, r.endpoint())
 	if err != nil {
 		return nil, err
@@ -67,11 +67,11 @@ func (c *Client) send(ctx context.Context, r multipartRequester) (*http.Response
 }
 
 // Store creates the resulting file to given destination.
-func (c *Client) Store(ctx context.Context, req multipartRequester, dest string) error {
+func (c *Client) Store(ctx context.Context, req MultipartRequester, dest string) error {
 	return c.store(ctx, req, dest)
 }
 
-func (c *Client) store(ctx context.Context, req multipartRequester, dest string) error {
+func (c *Client) store(ctx context.Context, req MultipartRequester, dest string) error {
 	if hasWebhook(req) {
 		return errWebhookNotAllowed
 	}
@@ -117,7 +117,7 @@ func writeNewFile(fpath string, in io.Reader) error {
 	return nil
 }
 
-func (c *Client) createRequest(ctx context.Context, mr multipartRequester, endpoint string) (*http.Request, error) {
+func (c *Client) createRequest(ctx context.Context, mr MultipartRequester, endpoint string) (*http.Request, error) {
 	body, contentType, err := multipartForm(mr)
 	if err != nil {
 		return nil, err
diff --git a/fields.go b/fields.go
index 85d8bf1..9e2232b 100644
--- a/fields.go
+++ b/fields.go
@@ -95,11 +95,12 @@ const (
 	fieldMergeFlatten formField = "flatten"
 )
 
+// Split request property.
 const (
-	fieldSplitMode    = "splitMode"
-	fieldSplitSpan    = "splitSpan"
-	fieldSplitUnify   = "splitUnify"
-	fieldSplitFlatten = "flatten"
+	fieldSplitMode    formField = "splitMode"
+	fieldSplitSpan    formField = "splitSpan"
+	fieldSplitUnify   formField = "splitUnify"
+	fieldSplitFlatten formField = "flatten"
 )
 
 // Split mode.
diff --git a/html.go b/html.go
index e9e61b9..3ecec8d 100644
--- a/html.go
+++ b/html.go
@@ -54,5 +54,5 @@ func (req *HTMLRequest) Assets(assets ...document.Document) {
 
 // Compile-time checks to ensure type implements desired interfaces.
 var (
-	_ = multipartRequester(new(HTMLRequest))
+	_ = MultipartRequester(new(HTMLRequest))
 )
diff --git a/libreoffice.go b/libreoffice.go
index ce1d851..87da8a5 100644
--- a/libreoffice.go
+++ b/libreoffice.go
@@ -203,5 +203,5 @@ func (req *LibreOfficeRequest) UpdateIndexes(value bool) {
 
 // Compile-time checks to ensure type implements desired interfaces.
 var (
-	_ = multipartRequester(new(LibreOfficeRequest))
+	_ = MultipartRequester(new(LibreOfficeRequest))
 )
diff --git a/markdown.go b/markdown.go
index d057970..757c58b 100644
--- a/markdown.go
+++ b/markdown.go
@@ -54,5 +54,5 @@ func (req *MarkdownRequest) Assets(assets ...document.Document) {
 
 // Compile-time checks to ensure type implements desired interfaces.
 var (
-	_ = multipartRequester(new(MarkdownRequest))
+	_ = MultipartRequester(new(MarkdownRequest))
 )
diff --git a/merge.go b/merge.go
index e401008..df62279 100644
--- a/merge.go
+++ b/merge.go
@@ -53,5 +53,5 @@ func (req *MergeRequest) Flatten(val bool) {
 
 // Compile-time checks to ensure type implements desired interfaces.
 var (
-	_ = multipartRequester(new(MergeRequest))
+	_ = MultipartRequester(new(MergeRequest))
 )
diff --git a/metadata_reader.go b/metadata_reader.go
index 951b287..acf8536 100644
--- a/metadata_reader.go
+++ b/metadata_reader.go
@@ -33,5 +33,5 @@ func (rmd *ReadMetadataRequest) formDocuments() map[string]document.Document {
 
 // Compile-time checks to ensure type implements desired interfaces.
 var (
-	_ = multipartRequester(new(ReadMetadataRequest))
+	_ = MultipartRequester(new(ReadMetadataRequest))
 )
diff --git a/metadata_writer.go b/metadata_writer.go
index a54e645..8ca3cde 100644
--- a/metadata_writer.go
+++ b/metadata_writer.go
@@ -37,5 +37,5 @@ func (wmd *WriteMetadataRequest) Metadata(md []byte) {
 
 // Compile-time checks to ensure type implements desired interfaces.
 var (
-	_ = multipartRequester(new(WriteMetadataRequest))
+	_ = MultipartRequester(new(WriteMetadataRequest))
 )
diff --git a/multipart.go b/multipart.go
index 6a4bf7f..82b4cf4 100644
--- a/multipart.go
+++ b/multipart.go
@@ -9,7 +9,7 @@ import (
 	"github.com/starwalkn/gotenberg-go-client/v8/document"
 )
 
-func multipartForm(mr multipartRequester) (body *bytes.Buffer, contentType string, err error) {
+func multipartForm(mr MultipartRequester) (body *bytes.Buffer, contentType string, err error) {
 	body = &bytes.Buffer{}
 
 	writer := multipart.NewWriter(body)
diff --git a/screenshot.go b/screenshot.go
index 90c1f7a..aa87cb9 100644
--- a/screenshot.go
+++ b/screenshot.go
@@ -9,7 +9,7 @@ import (
 type screenshotRequester interface {
 	screenshotEndpoint() string
 
-	multipartRequester
+	MultipartRequester
 }
 
 func (c *Client) Screenshot(ctx context.Context, scr screenshotRequester) (*http.Response, error) {
diff --git a/url.go b/url.go
index 64ea34d..524e1d9 100644
--- a/url.go
+++ b/url.go
@@ -42,5 +42,5 @@ func (req *URLRequest) formDocuments() map[string]document.Document {
 
 // Compile-time checks to ensure type implements desired interfaces.
 var (
-	_ = multipartRequester(new(URLRequest))
+	_ = MultipartRequester(new(URLRequest))
 )