Exhibit 32.1

     CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
                             18 U.S.C. SECTION 1350

     In connection with the Quarterly Report on Form 10-Q for the Quarterly
     Period Ended September 30, 2003 of P. H. Glatfelter Company (the "Company")
     as filed with the Securities and Exchange Commission on the date hereof
     (the "Report"), I, George H. Glatfelter II, Chairman and Chief Executive
     Officer of the Company, certify to the best of my knowledge, pursuant to
     Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350,
     that:

     1)   The Report fully complies with the requirements of section 13(a) or
          15(d) of the Securities Exchange Act of 1934, as amended; and

     2)   The information contained in the Report fairly presents, in all
          material respects, the financial condition and results of operations
          of the Company.

A signed original of this written statement required by Section 906 has been
provided to the Company and will be retained by the Company and furnished to the
Securities and Exchange Commission or its staff upon request.

          Date: November 13, 2003          By: /s/ George H. Glatfelter II
                                               --------------------------------
                                                   George H. Glatfelter II
                                                   Chairman and Chief Executive
                                                   Officer