diff options
| -rw-r--r-- | source/pdf/pdf-write.c | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/source/pdf/pdf-write.c b/source/pdf/pdf-write.c index 84e64450..2dead828 100644 --- a/source/pdf/pdf-write.c +++ b/source/pdf/pdf-write.c @@ -1637,11 +1637,18 @@ static void copystream(fz_context *ctx, pdf_document *doc, pdf_write_state *opts if (do_deflate && !pdf_dict_get(ctx, obj, PDF_NAME_Filter)) { - pdf_dict_put(ctx, obj, PDF_NAME_Filter, PDF_NAME_FlateDecode); - tmp = deflatebuf(ctx, buf->data, buf->len); - fz_drop_buffer(ctx, buf); - buf = tmp; + if (tmp->len >= buf->len) + { + /* Don't bother compressing, as we gain nothing. */ + fz_drop_buffer(ctx, tmp); + } + else + { + pdf_dict_put(ctx, obj, PDF_NAME_Filter, PDF_NAME_FlateDecode); + fz_drop_buffer(ctx, buf); + buf = tmp; + } } if (opts->do_ascii && isbinarystream(buf)) @@ -1651,12 +1658,12 @@ static void copystream(fz_context *ctx, pdf_document *doc, pdf_write_state *opts buf = tmp; addhexfilter(ctx, doc, obj); - - newlen = pdf_new_int(ctx, doc, (int)buf->len); - pdf_dict_put(ctx, obj, PDF_NAME_Length, newlen); - pdf_drop_obj(ctx, newlen); } + newlen = pdf_new_int(ctx, doc, (int)buf->len); + pdf_dict_put(ctx, obj, PDF_NAME_Length, newlen); + pdf_drop_obj(ctx, newlen); + fz_printf(ctx, opts->out, "%d %d obj\n", num, gen); pdf_print_obj(ctx, opts->out, obj, opts->do_tight); fz_puts(ctx, opts->out, "\nstream\n"); @@ -1686,11 +1693,18 @@ static void expandstream(fz_context *ctx, pdf_document *doc, pdf_write_state *op if (do_deflate) { - pdf_dict_put(ctx, obj, PDF_NAME_Filter, PDF_NAME_FlateDecode); - tmp = deflatebuf(ctx, buf->data, buf->len); - fz_drop_buffer(ctx, buf); - buf = tmp; + if (tmp->len >= buf->len) + { + /* Don't bother compressing, as we gain nothing. */ + fz_drop_buffer(ctx, tmp); + } + else + { + pdf_dict_put(ctx, obj, PDF_NAME_Filter, PDF_NAME_FlateDecode); + fz_drop_buffer(ctx, buf); + buf = tmp; + } } if (opts->do_ascii && isbinarystream(buf)) |