v2.7.1

Upgrade to gofpdi v1.0.16.

Pulls in four upstream PR fixes:

• phpdave11/gofpdi#77 — /ASCII85Decode filter support (PDFs using ASCII85-encoded streams can now be imported).
• phpdave11/gofpdi#78 — Multipage PDF split fix: interleaving page imports from multiple source files no longer silently overwrites earlier imports. Covers both ImportPage and ImportPageFromStream.
• phpdave11/gofpdi#81 — High object id fix: imported PDFs whose source object ids are ≥ 9999 are no longer silently dropped. Output is also now deterministic across runs.
• phpdave11/gofpdi#82 — Leading whitespace inside a stream is preserved per ISO 32000-1 §7.3.8.1, fixing imports that previously crashed with a misleading Expected next token to be: endstream error.

No source-level changes in gofpdf itself — just the dependency bump.

v1.4.3

Upgrade gofpdi to v1.0.15

v1.4.2

Upgrade gofpdi to v1.0.12

v1.4.1

Upgrade gofpdi to v1.0.11