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Write out multi-encoder filters correctly #281

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Mar 19, 2020
Merged

Write out multi-encoder filters correctly #281

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7 changes: 6 additions & 1 deletion core/encoding.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2372,7 +2372,12 @@ func (enc *MultiEncoder) AddEncoder(encoder StreamEncoder) {
// MakeStreamDict makes a new instance of an encoding dictionary for a stream object.
func (enc *MultiEncoder) MakeStreamDict() *PdfObjectDictionary {
dict := MakeDict()
dict.Set("Filter", MakeName(enc.GetFilterName()))

names := make([]PdfObject, len(enc.encoders))
for i, e := range enc.encoders {
names[i] = MakeName(e.GetFilterName())
}
dict.Set("Filter", MakeArray(names...))

// Pass all values from children, except Filter and DecodeParms.
for _, encoder := range enc.encoders {
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