4GL/ABL progress openEdge pdf justify

I want to justify center some paragraph in pdf.In the paragraph their have some parameters.So length of the each sentences defend on the parameters.Plz help me

As Sample Paragraph

We the undersigned" + para1 + "and" + para2 + " being the Directors of "+ para3 + "do hereby warrant represent confirm & declare to SMB LEASING PLC, that in terms of the Memorandum & Articles of Association of the Company the Directorsare duly authorized to obtain & have not exceeded their borrowing powers & are acting intra-vires in obtaining from SMB LEASING PLC Creditfacilities up to an overall limit of Rupees Three Million Five Hundred Thousand Only at any one time.

para1 = "Senaderi Dumunnage Ranjith Senadeera".

para2 = "Sirisena perera".

para3 = "R.R.Construction (Pvt) Ltd ".

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