No worries. Good discussion is happening in the issue[1], as the CTO of the PDF Association Peter Wyatt often shows up in our github feed. Visibility begins to pay off, at the cost of giving away training data for copilot for free (admitelly, but that's how things go today. willingly or unwillingly).
Cheers, Francesco [1] https://github.com/podofo/podofo/issues/233 On Mon, 10 Feb 2025 at 09:09, Christopher Creutzig via Podofo-users < podofo-users@lists.sourceforge.net> wrote: > Created #233 <https://github.com/podofo/podofo/issues/233>. Sorry for > spamming the list, Monday morning … > > > > > > Cheers, > > Christopher > > > > The MathWorks GmbH | Friedlandstr.18 | 52064 Aachen | District Court > Aachen | HRB 8082 | Managing Directors: Bertrand Dissler, Steven D. Barbo, > Jeanne O’Keefe > > > > > > > > > > *From: *Christopher Creutzig <ccreu...@mathworks.com> > *Date: *Monday, 10. February 2025 at 08:32 > *To: *podofo-users@lists.sourceforge.net < > podofo-users@lists.sourceforge.net> > *Subject: *XRef-only PDF 1.2? > > Hello list, > > > > I have come across a PDF that says it is PDF-1.2, but lacks a trailer. > > > > %PDF-1.2 > > … > > 74 0 obj > > <</ModDate(D:20231021205942-07'00')/Creator(3B2 Total Publishing > 6.03d/W)/CreationDate(D:19990204113552)/Producer(<FE><FF>PDFlib PLOP > 2.0.0p6 \(SunOS\)/Acrobat Distiller 3.02; modified using iText 4.2.0 by > 1T3XT)/Subject(Flavour & Fragrance J > 1999.14:12-14)/WPS-PROCLEVEL(2)/WPS-JOURNALDOI(10.1002/\(ISSN\)1099-1026)/Title(The > volatile constituents of Stachys athorecalyx C. Koch. from > Turkey)/WPS-ARTICLEDOI(10.1002/\(SICI\)1099-1026\(199901/02\)14:1<12::AID-FFJ763> > 3.0.CO;2-7)>> > > endobj > > … > > 75 0 obj > > <</Info 74 0 R/Filter/FlateDecode/Type/XRef/W[1 3 2]/Index[0 76]/ID > [<6578d3d85f8c20df99b60668aa8db362><7677d29556fbaf31d0e0f2ab8d162bad>]/Root > 37 0 R/Length 248/Size 76>>stream > > x<9C>5<D1>-O<C2>Q^X^E<F0>s<FE><FC>^QQ^P^UQ<F1>]PGg^N<E7><9C><D0>uv > <93><B3>^Q<FC>^H<9A><AD>^F77<C6>W<E0>^S<D8>t^D<93>^Af0H1 > ^X<D8>^L^D<83><E1><CA>s<F6>x<C3>og<E7><BE><<E1>^BDt^@D@^L^Pȍeܴ^\_ʎ > <9<99><CC><CB>^K?I"<FB>hM<ED>ɛ]<B9>!^S2)<CB>rF<E6><E5><A2>\<96><AB>rJF2 > <96><B9><A<A4><9F>=<A7><88>ҩ<CD>=<<F7>f<92><D8>^?<F0><9C>&<8E>Z<9E>3<C4> > q<DF><F3>4<F1>ٲ[_^MsX7<BF>?<CC>ѵ<F9>sg<FE>^<99><A1>鷲rK<CE><C9>Y<A2>^ > <F1><DD>y<E2>^D<9E>^Kr<81>8ESCz<B3>D<DC>W=<AF><C8>"<F1>R<F4>f] > <AE>^Q<AF><B7><DE>l^R<BD><FF>ݒ<DC>&<FA>^Yov<88><B7><B6><E7>=b<F0>n^?^T<DD> > @+<84>?͖'^G > > endstream > > endobj > > startxref > > 69529 > > %%EOF > > > > If I read the specs correctly, that is technically valid from 1.5 onwards. > PoDoFo (both 0.9.6 and trunk) happily read the file if I patch the first > line to claim PDF-1.3. > > > > Is there any reason not to attempt to read the whole thing for PDF < 1.3? > > > > Minimal patch to help our customer would be: > > > > *diff --git a/src/podofo/private/PdfParser.cpp > b/src/podofo/private/PdfParser.cpp* > > *index f94a325b..e0711547 100644* > > *--- a/src/podofo/private/PdfParser.cpp* > > *+++ b/src/podofo/private/PdfParser.cpp* > > @@ -348,8 +348,8 @@ void PdfParser::ReadXRefContents(InputStreamDevice& > device, size_t offset, bool > > > > if (token != "xref") > > { > > - // Found linearized 1.3-pdf's with trailer-info in xref-stream > > - if (m_PdfVersion < PdfVersion::V1_3) > > + // Found linearized 1.2-pdf's with trailer-info in xref-stream > > + if (m_PdfVersion < PdfVersion::V1_2) > > { > > PODOFO_RAISE_ERROR(PdfErrorCode::InvalidXRef); > > } > > > > > > > > Cheers, > > Christopher > > > > The MathWorks GmbH | Friedlandstr.18 | 52064 Aachen | District Court > Aachen | HRB 8082 | Managing Directors: Bertrand Dissler, Steven D. Barbo, > Jeanne O’Keefe > > > > > > > _______________________________________________ > Podofo-users mailing list > Podofo-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/podofo-users >
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