1727861237582059674_410248841454694400_50073825-894532016436289-2-894531986045955736666900031000-0100072444237514-0020588687056000-20240906171407.pdf
can read this file,
dead loop at

j := strings.LastIndex(string(workBuf), "startxref")
if j == -1 {
prevBuf = curBuf
continue
}