diff --git a/go.mod b/go.mod
index 545a97a..cb27770 100644
--- a/go.mod
+++ b/go.mod
@@ -5,6 +5,13 @@ go 1.26.4
 require (
 	github.com/go-crdt/crdt v0.31.0
 	github.com/go-deltasync/chunk v0.2.0
-	github.com/go-pdfkit/ops v0.4.0
-	github.com/go-pdfkit/reader v0.4.0
+	github.com/go-pdfkit/ops v0.6.0
+	github.com/go-pdfkit/reader v0.4.2
+)
+
+require (
+	github.com/go-opentype/fonts v0.9.0 // indirect
+	github.com/go-opentype/opentype v0.9.0 // indirect
+	github.com/go-pdfkit/forms v0.2.1 // indirect
+	github.com/go-pdfkit/pdffont v0.3.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 868d190..427e202 100644
--- a/go.sum
+++ b/go.sum
@@ -2,7 +2,15 @@ github.com/go-crdt/crdt v0.31.0 h1:CTi+lo0bjsJv3F09CR/AdILQtWEWmzbDQ+S/6HNBOMU=
 github.com/go-crdt/crdt v0.31.0/go.mod h1:vbfvns9B9FUaMi2sPKzMYttKmbxfgO7EK3Yu82SrlYw=
 github.com/go-deltasync/chunk v0.2.0 h1:2w4zBBXbrZwsBJAMnBCstPTj4YNeUvHjvY0qAFA1yuE=
 github.com/go-deltasync/chunk v0.2.0/go.mod h1:lstvS05YsLMRBKrvE75vOXm07cMMRVQJfhdYPiR04OE=
-github.com/go-pdfkit/ops v0.4.0 h1:2WeYwDhN2OyoYtjYCdgm7gWGVNmiu+8OwOKEhyb3Cp0=
-github.com/go-pdfkit/ops v0.4.0/go.mod h1:X89phxHICCYl6+zn3L6YXH3mRLBlsLdPYuDCryGLXzI=
-github.com/go-pdfkit/reader v0.4.0 h1:qPbNZSO+Xl+4NBvQoV1PYt7HlqHaEAQ1tUc6/IL8JAU=
-github.com/go-pdfkit/reader v0.4.0/go.mod h1:fQFOVfCMUui1AdvD4qhimdyvvNr9KvvJ1S7IuKZjyV8=
+github.com/go-opentype/fonts v0.9.0 h1:slB6OB3riLyUPrOxqXe0s6/AzdenF1TDvCN8N87hhQk=
+github.com/go-opentype/fonts v0.9.0/go.mod h1:C6yQL2apHItfEZ5hztpsHF0S5mlX/hklLlq/Z5fRG/g=
+github.com/go-opentype/opentype v0.9.0 h1:GFgcJ3nwTDp4NJr5O+Paw7lhZx5Jv/R+noZwvhYDlkM=
+github.com/go-opentype/opentype v0.9.0/go.mod h1:AOixevJf7XQaH7+WG+OMIOZEbYPXfMqklVk26Y6YTUU=
+github.com/go-pdfkit/forms v0.2.1 h1:INa2GwAadxEhcXvBe7zJYgapYwaGn9WIaLxUJU/lm6A=
+github.com/go-pdfkit/forms v0.2.1/go.mod h1:LORxkdP4FVULFk0/PA0CdPZc1dZF9zTSaHrtfM7IYaw=
+github.com/go-pdfkit/ops v0.6.0 h1:5C8qLzdUosBPmdGbC0YOuObCv9OSTLkl1ZatyzeBAik=
+github.com/go-pdfkit/ops v0.6.0/go.mod h1:Is3FBR2NcCUEzNt4eowdsVa+P0SBtGtcxK8lDlOeyrk=
+github.com/go-pdfkit/pdffont v0.3.0 h1:G5DKcAmsZJ0e17QhSrcUaL7PKEXKjUx4P/iGMl7bAbI=
+github.com/go-pdfkit/pdffont v0.3.0/go.mod h1:bfmNLna1l1CljNX/Utg55YzFylovfmI7sJnvgA3bzKI=
+github.com/go-pdfkit/reader v0.4.2 h1:0/qPShLzdG/roH4i13dwDTHnS7mEBVTaCBGwCZQhOH0=
+github.com/go-pdfkit/reader v0.4.2/go.mod h1:fQFOVfCMUui1AdvD4qhimdyvvNr9KvvJ1S7IuKZjyV8=