Syntax of content streams - two commands on one line

Hello

I developed PDF parser for partial application and it works for most PDF I need.

But recently I came across the piece of code that looks like this:

BT
/T1 1 Tf
12 0 0 12 21.7323 769.5831 Tm
(A)Tj
-0.01 Tw 11.4 0 0 12 57.7323 769.5831 Tm
[(P)25(od )35(...)]TJ
0.134 Tw -30.43 -1.056 Td
0 Tw (-)Tj
0.087 Tw T*

ET

There are two commands on one line (Tw and Tm, Tw and Td, Tw and Tj, Tw and T * etc.) and Adobe Reader displays PDF file very well.

(1) how it is supposed to be threaded? First TW and Tm Tm, or seconds first (take 6 arguments and check if there is anything left) and Tw as second operation?

(2) where this situation is documented in the PDF reference? I want to check for general handling avoid another flaw in my application.

Thank you

The only requirement in a content stream is that there are some 'spaces' between operators and operands.  If this space is a space, tab, line break, etc. belongs to the PDF producer.  In more recent writers of PDF, there are NO jumps line (CR/LF) and only spaces.

(the exception to this rule is inline images)

Tags: Adobe Developers

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