diff options
Diffstat (limited to 'apps/pdfrip.c')
| -rw-r--r-- | apps/pdfrip.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/apps/pdfrip.c b/apps/pdfrip.c new file mode 100644 index 00000000..b6d2b9d8 --- /dev/null +++ b/apps/pdfrip.c @@ -0,0 +1,182 @@ +#include <fitz.h> +#include <mupdf.h> + +int showtree = 0; +float zoom = 1.0; +char *namefmt = "out-%02d.ppm"; +fz_renderer *gc; +int nbands = 1; + +void usage() +{ + fprintf(stderr, "usage: pdfrip [-d] [-b bands] [-o out-%%02d.ppm] [-p password] [-z zoom] file.pdf pages...\n"); + exit(1); +} + +/* + * Draw page + */ + +void showpage(pdf_xref *xref, fz_obj *pageobj, int pagenum) +{ + fz_error *error; + pdf_page *page; + char namebuf[256]; + fz_pixmap *pix; + fz_matrix ctm; + fz_irect bbox; + fz_irect band; + FILE *f; + int x, y; + int w, h; + int b; + + sprintf(namebuf, namefmt, pagenum); + + error = pdf_loadpage(&page, xref, pageobj); + if (error) + fz_abort(error); + + if (showtree) + { + fz_debugobj(pageobj); + printf("\n"); + + printf("page\n"); + printf(" mediabox [ %g %g %g %g ]\n", + page->mediabox.min.x, page->mediabox.min.y, + page->mediabox.max.x, page->mediabox.max.y); + printf(" rotate %d\n", page->rotate); + + printf(" resources\n"); + fz_debugobj(page->resources); + printf("\n"); + + printf("tree\n"); + fz_debugtree(page->tree); + printf("endtree\n"); + } + + ctm = fz_concat(fz_translate(0, -page->mediabox.max.y), + fz_scale(zoom, -zoom)); + + bbox = fz_roundrect(page->mediabox); + bbox.min.x = bbox.min.x * zoom; + bbox.min.y = bbox.min.y * zoom; + bbox.max.x = bbox.max.x * zoom; + bbox.max.y = bbox.max.y * zoom; + w = bbox.max.x - bbox.min.x; + h = bbox.max.y - bbox.min.y; + + f = fopen(namebuf, "wb"); + fprintf(f, "P6\n%d %d\n255\n", w, h); + + for (b = 0; b < nbands; b++) + { + printf("band %d / %d\n", b, nbands); + + band.min.x = bbox.min.x; + band.max.x = bbox.max.x; + band.min.y = bbox.min.y + (h * b) / nbands; + band.max.y = bbox.min.y + (h * (b + 1)) / nbands; + + error = fz_rendertree(&pix, gc, page->tree, ctm, band, 1); + if (error) + fz_abort(error); + + for (y = 0; y < pix->h; y++) + { + for (x = 0; x < pix->w; x++) + { + putc(pix->samples[y * pix->w * 4 + x * 4 + 1], f); + putc(pix->samples[y * pix->w * 4 + x * 4 + 2], f); + putc(pix->samples[y * pix->w * 4 + x * 4 + 3], f); + } + } + + fz_droppixmap(pix); + } + + fclose(f); + +} + +int main(int argc, char **argv) +{ + fz_error *error; + char *filename; + pdf_xref *xref; + pdf_pagetree *pages; + int c; + + char *password = ""; + + fz_cpudetect(); + fz_accelerate(); + + while ((c = getopt(argc, argv, "dz:p:o:b:")) != -1) + { + switch (c) + { + case 'p': password = optarg; break; + case 'z': zoom = atof(optarg); break; + case 'd': ++showtree; break; + case 'o': namefmt = optarg; break; + case 'b': nbands = atoi(optarg); break; + default: usage(); + } + } + + if (argc - optind == 0) + usage(); + + filename = argv[optind++]; + + error = pdf_newxref(&xref); + if (error) + fz_abort(error); + + error = pdf_loadxref(xref, filename); + if (error) + fz_abort(error); + + error = pdf_decryptxref(xref); + if (error) + fz_abort(error); + + if (xref->crypt) + { + error = pdf_setpassword(xref->crypt, password); + if (error) + fz_abort(error); + } + + error = pdf_loadpagetree(&pages, xref); + if (error) + fz_abort(error); + + if (optind == argc) + { + printf("number of pages: %d\n", pdf_getpagecount(pages)); + } + + error = fz_newrenderer(&gc, pdf_devicergb, 0, 1024 * 512); + if (error) + fz_abort(error); + + for ( ; optind < argc; optind++) + { + int page = atoi(argv[optind]); + if (page < 1 || page > pdf_getpagecount(pages)) + fprintf(stderr, "page out of bounds: %d\n", page); + printf("page %d\n", page); + showpage(xref, pdf_getpageobject(pages, page - 1), page); + } + + fz_droprenderer(gc); + + pdf_closexref(xref); + + return 0; +} + |