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Code Issues Releases Wiki Activity

Externalize inline images (fixes #278)

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This commit is contained in:
Jay Berkenbilt 2019-01-30 17:56:47 -05:00
parent 22bcdbe786
commit 5211bcb5ea
25 changed files with 179282 additions and 26 deletions
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12
ChangeLog
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@ -1,5 +1,17 @@
2019-01-31 Jay Berkenbilt <ejb@ql.org>
* Add new options --externalize-inline-images, which converts
inline images larger than a specified size to regular images, and
--ii-min-bytes, which tweaks that size.
* When optimizing images, inline images are now included in the
optimization, first being converted to regular images. Use
--keep-inline-images to exclude them from optimization. Fixes #278.
* Add method QPDFPageObjectHelper::externalizeInlineImages, which
converts inline images whose size is at least a specified amount
to regular images.
* Remove traces of acroread, which hasn't been available in Linux
for a long time.

22
TODO
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@ -1,3 +1,8 @@
Now
===
* Deal with compiler warnings
Soon
====
@ -96,23 +101,6 @@ directory or that are otherwise not publicly accessible. This includes
things sent to me by email that are specifically not public. Even so,
I find it useful to make reference to them in this list
* Do something better for inline images (see #278)
* Figure out a way to add an expectInlineImage method that takes
the offset of the EI image so an external system can locate the
end tag. Hopefully Both QPDFObjectHandle and Pl_QPDFTokenizer can
do this. Somewhere we might want something that uses an input
source to do it, but for the pipeline, it will also have to be
possible to do it as we go.
* Improve location of EI to handle EI embedded in the image data;
consider trying to parse after EI and, if errors, keep looking.
Will have to look at what happens with random binary characters
regarding token type.
* Add a method to replace inline images with real images. Look at
existing code for adding new resources used with form XObjects
and reuse if possible
* Have image optimization replace inline images that are of more
than a certain size prior to optimizing
* Add support for writing name and number trees
* Figure out how to render Gajić correctly in the PDF version of the

5
include/qpdf/QPDFPageObjectHelper.hh
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@ -73,6 +73,11 @@ class QPDFPageObjectHelper: public QPDFObjectHelper
QPDF_DLL
std::map<std::string, QPDFObjectHandle> getPageImages();
// Convert each inline image to an external (normal) image if the
// size is at least the specified number of bytes.
QPDF_DLL
void externalizeInlineImages(size_t min_size = 0);
// Return the annotations in the page's "/Annots" list, if any. If
// only_subtype is non-empty, only include annotations of the
// given subtype.

267
libqpdf/QPDFPageObjectHelper.cc
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@ -2,6 +2,7 @@
#include <qpdf/QTC.hh>
#include <qpdf/QPDF.hh>
#include <qpdf/Pl_Concatenate.hh>
#include <qpdf/Pl_Buffer.hh>
#include <qpdf/QUtil.hh>
#include <qpdf/QPDFExc.hh>
#include <qpdf/QPDFMatrix.hh>
@ -36,6 +37,251 @@ ContentProvider::provideStreamData(int, int, Pipeline* p)
concat.manualFinish();
}
class InlineImageTracker: public QPDFObjectHandle::TokenFilter
{
public:
InlineImageTracker(QPDF*, size_t min_size, QPDFObjectHandle resources);
virtual ~InlineImageTracker()
{
}
virtual void handleToken(QPDFTokenizer::Token const&);
QPDFObjectHandle convertIIDict(QPDFObjectHandle odict);
QPDF* qpdf;
size_t min_size;
QPDFObjectHandle resources;
std::string dict_str;
std::string bi_str;
int min_suffix;
bool any_images;
enum { st_top, st_bi } state;
};
InlineImageTracker::InlineImageTracker(QPDF* qpdf, size_t min_size,
QPDFObjectHandle resources) :
qpdf(qpdf),
min_size(min_size),
resources(resources),
min_suffix(1),
any_images(false),
state(st_top)
{
}
QPDFObjectHandle
InlineImageTracker::convertIIDict(QPDFObjectHandle odict)
{
QPDFObjectHandle dict = QPDFObjectHandle::newDictionary();
dict.replaceKey("/Type", QPDFObjectHandle::newName("/XObject"));
dict.replaceKey("/Subtype", QPDFObjectHandle::newName("/Image"));
std::set<std::string> keys = odict.getKeys();
for (std::set<std::string>::iterator iter = keys.begin();
iter != keys.end(); ++iter)
{
std::string key = *iter;
QPDFObjectHandle value = odict.getKey(key);
if (key == "/BPC")
{
key = "/BitsPerComponent";
}
else if (key == "/CS")
{
key = "/ColorSpace";
}
else if (key == "/D")
{
key = "/Decode";
}
else if (key == "/DP")
{
key = "/DecodeParms";
}
else if (key == "/F")
{
key = "/Filter";
}
else if (key == "/H")
{
key = "/Height";
}
else if (key == "/IM")
{
key = "/ImageMask";
}
else if (key == "/I")
{
key = "/Interpolate";
}
else if (key == "/W")
{
key = "/Width";
}
if (key == "/ColorSpace")
{
if (value.isName())
{
std::string name = value.getName();
if (name == "/G")
{
name = "/DeviceGray";
}
else if (name == "/RGB")
{
name = "/DeviceRGB";
}
else if (name == "/CMYK")
{
name = "/DeviceCMYK";
}
else if (name == "/I")
{
name = "/Indexed";
}
else
{
name.clear();
}
if (! name.empty())
{
value = QPDFObjectHandle::newName(name);
}
}
}
else if (key == "/Filter")
{
std::vector<QPDFObjectHandle> filters;
if (value.isName())
{
filters.push_back(value);
}
else if (value.isArray())
{
filters = value.getArrayAsVector();
}
for (std::vector<QPDFObjectHandle>::iterator iter =
filters.begin();
iter != filters.end(); ++iter)
{
std::string name;
if ((*iter).isName())
{
name = (*iter).getName();
}
if (name == "/AHx")
{
name = "/ASCIIHexDecode";
}
else if (name == "/A85")
{
name = "/ASCII85Decode";
}
else if (name == "/LZW")
{
name = "/LZWDecode";
}
else if (name == "/Fl")
{
name = "/FlateDecode";
}
else if (name == "/RL")
{
name = "/RunLengthDecode";
}
else if (name == "/CCF")
{
name = "/CCITTFaxDecode";
}
else if (name == "/DCT")
{
name = "/DCTDecode";
}
else
{
name.clear();
}
if (! name.empty())
{
*iter = QPDFObjectHandle::newName(name);
}
}
if (value.isName() && (filters.size() == 1))
{
value = filters.at(0);
}
else if (value.isArray())
{
value = QPDFObjectHandle::newArray(filters);
}
}
dict.replaceKey(key, value);
}
return dict;
}
void
InlineImageTracker::handleToken(QPDFTokenizer::Token const& token)
{
if (state == st_bi)
{
if (token.getType() == QPDFTokenizer::tt_inline_image)
{
std::string image_data(token.getValue());
size_t len = image_data.length();
// The token ends with delimiter followed by EI, so it
// will always be at least 3 bytes long. We want to
// exclude the EI and preceding delimiter.
len = (len >= 3 ? len - 3 : 0);
if (len >= this->min_size)
{
QTC::TC("qpdf", "QPDFPageObjectHelper externalize inline image");
Pl_Buffer b("image_data");
b.write(QUtil::unsigned_char_pointer(image_data), len);
b.finish();
QPDFObjectHandle dict =
convertIIDict(QPDFObjectHandle::parse(dict_str));
dict.replaceKey("/Length", QPDFObjectHandle::newInteger(len));
std::string name = resources.getUniqueResourceName(
"/IIm", this->min_suffix);
QPDFObjectHandle image = QPDFObjectHandle::newStream(
this->qpdf, b.getBuffer());
image.replaceDict(dict);
resources.getKey("/XObject").replaceKey(name, image);
write(name);
write(" Do\n");
any_images = true;
}
else
{
QTC::TC("qpdf", "QPDFPageObjectHelper keep inline image");
write(bi_str);
writeToken(token);
}
state = st_top;
}
else if (token == QPDFTokenizer::Token(QPDFTokenizer::tt_word, "ID"))
{
bi_str += token.getValue();
dict_str += " >>";
}
else
{
bi_str += token.getValue();
dict_str += token.getValue();
}
}
else if (token == QPDFTokenizer::Token(QPDFTokenizer::tt_word, "BI"))
{
bi_str = token.getValue();
dict_str = "<< ";
state = st_bi;
}
else
{
writeToken(token);
}
}
QPDFPageObjectHelper::Members::~Members()
{
}
@ -112,13 +358,32 @@ QPDFPageObjectHelper::getMediaBox(bool copy_if_shared)
return getAttribute("/MediaBox", copy_if_shared);
}
std::map<std::string, QPDFObjectHandle>
QPDFPageObjectHelper::getPageImages()
{
return this->oh.getPageImages();
}
void
QPDFPageObjectHelper::externalizeInlineImages(size_t min_size)
{
QPDFObjectHandle resources = getAttribute("/Resources", true);
// Calling mergeResources also ensures that /XObject becomes
// direct and is not shared with other pages.
resources.mergeResources(
QPDFObjectHandle::parse("<< /XObject << >> >>"));
InlineImageTracker iit(this->oh.getOwningQPDF(), min_size, resources);
Pl_Buffer b("new page content");
filterPageContents(&iit, &b);
if (iit.any_images)
{
getObjectHandle().replaceKey(
"/Contents",
QPDFObjectHandle::newStream(
this->oh.getOwningQPDF(), b.getBuffer()));
}
}
std::vector<QPDFAnnotationObjectHelper>
QPDFPageObjectHelper::getAnnotations(std::string const& only_subtype)
{

70
manual/qpdf-manual.xml
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@ -1746,7 +1746,11 @@ outfile.pdf</option>
<option>--verbose</option>. See also the
<option>--oi-min-width</option>,
<option>--oi-min-height</option>, and
<option>--oi-min-area</option> options.
<option>--oi-min-area</option> options. By default, starting
in qpdf 8.4, inline images are converted to regular images
and optimized as well. Use
<option>--keep-inline-images</option> to prevent inline images
from being included.
</para>
</listitem>
</varlistentry>
@ -1780,6 +1784,43 @@ outfile.pdf</option>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--externalize-inline-images</option></term>
<listitem>
<para>
Convert inline images to regular images. By default, images
whose data is at least 1,024 bytes are converted when this
option is selected. Use <option>--ii-min-bytes</option> to
change the size threshold. This option is implicitly selected
when <option>--optimize-images</option> is selected. Use
<option>--keep-inline-images</option> to exclude inline images
from image optimization.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--ii-min-bytes=<replaceable>bytes</replaceable></option></term>
<listitem>
<para>
Avoid converting inline images whose size is below the
specified minimum size to regular images. If omitted, the
default is 1,024 bytes. Use 0 for no minimum.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--keep-inline-images</option></term>
<listitem>
<para>
Prevent inline images from being included in image
optimization. This option has no affect when
<option>--optimize-images</option> is not specified.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--qdf</option></term>
<listitem>
@ -4321,6 +4362,18 @@ print "\n";
</itemizedlist>
</para>
</listitem>
<listitem>
<para>
New options <option>--externalize-inline-images</option>,
<option>--ii-min-bytes</option>, and
<option>--keep-inline-images</option> control qpdf's
handling of inline images and possible conversion of them to
regular images. By default,
<option>--optimize-images</option> now also applies to
inline images. These options are discussed in <xref
linkend="ref.advanced-transformation"/>.
</para>
</listitem>
<listitem>
<para>
Add options <option>--overlay</option> and
@ -4415,6 +4468,14 @@ print "\n";
not compressed.
</para>
</listitem>
<listitem>
<para>
When the tokenizer returns inline image tokens, delimiters
following <literal>ID</literal> and <literal>EI</literal>
operators are no longer excluded. This makes it possible to
reliably extract the actual image data.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
@ -4422,6 +4483,13 @@ print "\n";
Library Enhancements
</para>
<itemizedlist>
<listitem>
<para>
Add method
<function>QPDFPageObjectHelper::externalizeInlineImages</function>
to convert inline images to regular images.
</para>
</listitem>
<listitem>
<para>
Add method

65
qpdf/qpdf.cc
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@ -161,9 +161,12 @@ struct Options
json(false),
check(false),
optimize_images(false),
externalize_inline_images(false),
keep_inline_images(false),
oi_min_width(128), // Default values for these
oi_min_height(128), // oi flags are in --help
oi_min_area(16384), // and in the manual.
ii_min_bytes(1024), //
underlay("underlay"),
overlay("overlay"),
under_overlay(0),
@ -254,9 +257,12 @@ struct Options
std::set<std::string> json_objects;
bool check;
bool optimize_images;
bool externalize_inline_images;
bool keep_inline_images;
size_t oi_min_width;
size_t oi_min_height;
size_t oi_min_area;
size_t ii_min_bytes;
UnderOverlay underlay;
UnderOverlay overlay;
UnderOverlay* under_overlay;
@ -659,9 +665,12 @@ class ArgParser
void argJsonObject(char* parameter);
void argCheck();
void argOptimizeImages();
void argExternalizeInlineImages();
void argKeepInlineImages();
void argOiMinWidth(char* parameter);
void argOiMinHeight(char* parameter);
void argOiMinArea(char* parameter);
void argIiMinBytes(char* parameter);
void arg40Print(char* parameter);
void arg40Modify(char* parameter);
void arg40Extract(char* parameter);
@ -894,12 +903,17 @@ ArgParser::initOptionTable()
&ArgParser::argJsonObject, "trailer|obj[,gen]");
(*t)["check"] = oe_bare(&ArgParser::argCheck);
(*t)["optimize-images"] = oe_bare(&ArgParser::argOptimizeImages);
(*t)["externalize-inline-images"] =
oe_bare(&ArgParser::argExternalizeInlineImages);
(*t)["keep-inline-images"] = oe_bare(&ArgParser::argKeepInlineImages);
(*t)["oi-min-width"] = oe_requiredParameter(
&ArgParser::argOiMinWidth, "minimum-width");
(*t)["oi-min-height"] = oe_requiredParameter(
&ArgParser::argOiMinHeight, "minimum-height");
(*t)["oi-min-area"] = oe_requiredParameter(
&ArgParser::argOiMinArea, "minimum-area");
(*t)["ii-min-bytes"] = oe_requiredParameter(
&ArgParser::argIiMinBytes, "minimum-bytes");
(*t)["overlay"] = oe_bare(&ArgParser::argOverlay);
(*t)["underlay"] = oe_bare(&ArgParser::argUnderlay);
@ -1308,6 +1322,12 @@ ArgParser::argHelp()
<< " default is 128. Use 0 to mean no minimum\n"
<< "--oi-min-area=a do not optimize images whose pixel count is below a\n"
<< " default is 16,384. Use 0 to mean no minimum\n"
<< "--externalize-inline-images convert inline images to regular images; by\n"
<< " default, images of at least 1,024 bytes are\n"
<< " externalized\n"
<< "--ii-min-bytes=bytes specify minimum size of inline images to be\n"
<< " converted to regular images\n"
<< "--keep-inline-images exclude inline images from image optimization\n"
<< "--qdf turns on \"QDF mode\" (below)\n"
<< "--linearize-pass1=file write intermediate pass of linearized file\n"
<< " for debugging\n"
@ -1965,6 +1985,18 @@ ArgParser::argOptimizeImages()
o.optimize_images = true;
}
void
ArgParser::argExternalizeInlineImages()
{
o.externalize_inline_images = true;
}
void
ArgParser::argKeepInlineImages()
{
o.keep_inline_images = true;
}
void
ArgParser::argOiMinWidth(char* parameter)
{
@ -1983,6 +2015,12 @@ ArgParser::argOiMinArea(char* parameter)
o.oi_min_area = QUtil::string_to_int(parameter);
}
void
ArgParser::argIiMinBytes(char* parameter)
{
o.ii_min_bytes = QUtil::string_to_int(parameter);
}
void
ArgParser::arg40Print(char* parameter)
{
@ -2933,6 +2971,10 @@ ArgParser::doFinalChecks()
{
usage("no output file may be given for this option");
}
if (o.optimize_images && (! o.keep_inline_images))
{
o.externalize_inline_images = true;
}
if (o.require_outfile && (strcmp(o.outfilename, "-") == 0))
{
@ -3764,10 +3806,7 @@ ImageOptimizer::makePipeline(std::string const& description, Pipeline* next)
QPDFObjectHandle w_obj = dict.getKey("/Width");
QPDFObjectHandle h_obj = dict.getKey("/Height");
QPDFObjectHandle colorspace_obj = dict.getKey("/ColorSpace");
QPDFObjectHandle components_obj = dict.getKey("/BitsPerComponent");
if (! (w_obj.isInteger() &&
h_obj.isInteger() &&
components_obj.isInteger()))
if (! (w_obj.isNumber() && h_obj.isNumber()))
{
if (o.verbose && (! description.empty()))
{
@ -3777,8 +3816,12 @@ ImageOptimizer::makePipeline(std::string const& description, Pipeline* next)
}
return result;
}
JDIMENSION w = w_obj.getIntValue();
JDIMENSION h = h_obj.getIntValue();
// Files have been seen in the wild whose width and height are
// floating point, which is goofy, but we can deal with it.
JDIMENSION w = static_cast<JDIMENSION>(
w_obj.isInteger() ? w_obj.getIntValue() : w_obj.getNumericValue());
JDIMENSION h = static_cast<JDIMENSION>(
h_obj.isInteger() ? h_obj.getIntValue() : h_obj.getNumericValue());
std::string colorspace = (colorspace_obj.isName() ?
colorspace_obj.getName() :
"");
@ -4198,6 +4241,16 @@ static void handle_under_overlay(QPDF& pdf, Options& o)
static void handle_transformations(QPDF& pdf, Options& o)
{
QPDFPageDocumentHelper dh(pdf);
if (o.externalize_inline_images)
{
std::vector<QPDFPageObjectHelper> pages = dh.getAllPages();
for (std::vector<QPDFPageObjectHelper>::iterator iter = pages.begin();
iter != pages.end(); ++iter)
{
QPDFPageObjectHelper& ph(*iter);
ph.externalizeInlineImages(o.ii_min_bytes);
}
}
if (o.optimize_images)
{
int pageno = 0;

2
qpdf/qpdf.testcov
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@ -436,3 +436,5 @@ QPDFTokenizer found EI the old way 0
QPDFTokenizer found EI by byte count 0
QPDFTokenizer inline image at EOF the old way 0
QPDFTokenizer found EI after more than one try 0
QPDFPageObjectHelper externalize inline image 0
QPDFPageObjectHelper keep inline image 0

71
qpdf/qtest/qpdf.test
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@ -679,7 +679,7 @@ $td->runtest("check pass1 file",
show_ntests();
# ----------
$td->notify("--- Inline Images ---");
$n_tests += 2;
$n_tests += 8;
# The file large-inline-image.pdf is a hand-crafted file with several
# inline images of various sizes including one that is two megabytes,
@ -696,6 +696,69 @@ $td->runtest("check output",
{$td->FILE => "a.pdf"},
{$td->FILE => "large-inline-image.qdf"});
$td->runtest("eof in inline image",
{$td->COMMAND =>
"qpdf --qdf --static-id eof-in-inline-image.pdf a.pdf"},
{$td->FILE => "eof-inline-qdf.out", $td->EXIT_STATUS => 3},
$td->NORMALIZE_NEWLINES);
$td->runtest("check output",
{$td->FILE => "a.pdf"},
{$td->FILE => "eof-in-inline-image.qdf"});
$td->runtest("externalize eof in inline image",
{$td->COMMAND =>
"qpdf --qdf --externalize-inline-images" .
" --static-id eof-in-inline-image.pdf a.pdf"},
{$td->FILE => "eof-inline-qdf.out", $td->EXIT_STATUS => 3},
$td->NORMALIZE_NEWLINES);
$td->runtest("check output",
{$td->FILE => "a.pdf"},
{$td->FILE => "eof-in-inline-image-ii.qdf"});
$td->runtest("externalize damaged image",
{$td->COMMAND =>
"qpdf --externalize-inline-images" .
" --compress-streams=n --static-id" .
" damaged-inline-image.pdf a.pdf"},
{$td->STRING => "", $td->EXIT_STATUS => 0},
$td->NORMALIZE_NEWLINES);
$td->runtest("check output",
{$td->FILE => "a.pdf"},
{$td->FILE => "damaged-inline-image-out.pdf"});
my @eii_tests = (
['inline-images', 80],
['large-inline-image', 1024],
);
$n_tests += 4 * scalar(@eii_tests);
$n_compare_pdfs += 2 * scalar(@eii_tests);
foreach my $d (@eii_tests)
{
my ($file, $threshold) = @$d;
$td->runtest("inline image $file (all)",
{$td->COMMAND =>
"qpdf --qdf --static-id --externalize-inline-images" .
" --ii-min-bytes=0 $file.pdf a.pdf"},
{$td->STRING => "", $td->EXIT_STATUS => 0},
$td->NORMALIZE_NEWLINES);
$td->runtest("check output",
{$td->FILE => "a.pdf"},
{$td->FILE => "$file-ii-all.pdf"});
compare_pdfs("$file.pdf", "a.pdf");
$td->runtest("inline image $file (some)",
{$td->COMMAND =>
"qpdf --qdf --static-id --externalize-inline-images" .
" --ii-min-bytes=$threshold $file.pdf a.pdf"},
{$td->STRING => "", $td->EXIT_STATUS => 0},
$td->NORMALIZE_NEWLINES);
$td->runtest("check output",
{$td->FILE => "a.pdf"},
{$td->FILE => "$file-ii-some.pdf"});
compare_pdfs("$file.pdf", "a.pdf");
}
# QXXXQ externalize tests with min size
show_ntests();
# ----------
$td->notify("--- Tokenizer ---");
@ -2019,6 +2082,12 @@ my @image_opt = (
'--oi-min-width=0 --oi-min-height=0 --oi-min-area=30000'],
['small-images', 'min-area-all',
'--oi-min-width=0 --oi-min-height=0 --oi-min-area=30000'],
['large-inline-image', 'inline-images',
'--ii-min-bytes=0'],
['large-inline-image', 'inline-images-all-size',
'--oi-min-width=0 --oi-min-height=0 --oi-min-area=0 --ii-min-bytes=0'],
['large-inline-image', 'inline-images-keep-some', ''],
['large-inline-image', 'inline-images-keep-all', '--keep-inline-images'],
);
$n_tests += 2 * scalar(@image_opt);

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qpdf/qtest/qpdf/eof-inline-qdf.out Normal file
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@ -0,0 +1,4 @@
WARNING: eof-in-inline-image.pdf (offset 299): content normalization encountered bad tokens
WARNING: eof-in-inline-image.pdf (offset 299): normalized content ended with a bad token; you may be able to resolve this by coalescing content streams in combination with normalizing content. From the command line, specify --coalesce-contents
WARNING: eof-in-inline-image.pdf (offset 299): Resulting stream data may be corrupted but is may still useful for manual inspection. For more information on this warning, search for content normalization in the manual.
qpdf: operation succeeded with warnings; resulting file may have some problems

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qpdf/qtest/qpdf/inline-images-ii-some.pdf Normal file
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79
qpdf/qtest/qpdf/optimize-images-inline-images-all-size-json.out Normal file
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@ -0,0 +1,79 @@
{
"pages": [
{
"contents": [
"7 0 R"
],
"images": [
{
"bitspercomponent": 8,
"colorspace": "/DeviceRGB",
"decodeparms": [
null
],
"filter": [
"/DCTDecode"
],
"filterable": false,
"height": 56,
"name": "/IIm1",
"object": "8 0 R",
"width": 49
},
{
"bitspercomponent": 8,
"colorspace": "/DeviceRGB",
"decodeparms": [
null
],
"filter": [
"/DCTDecode"
],
"filterable": false,
"height": 675,
"name": "/IIm2",
"object": "9 0 R",
"width": 1200
},
{
"bitspercomponent": 8,
"colorspace": "/DeviceRGB",
"decodeparms": [
null
],
"filter": [
"/DCTDecode"
],
"filterable": false,
"height": 56,
"name": "/IIm3",
"object": "10 0 R",
"width": 49
},
{
"bitspercomponent": 8,
"colorspace": "/DeviceGray",
"decodeparms": [
null
],
"filter": [
"/FlateDecode"
],
"filterable": true,
"height": 8,
"name": "/IIm4",
"object": "11 0 R",
"width": 8
}
],
"label": null,
"object": "4 0 R",
"outlines": [],
"pageposfrom1": 1
}
],
"parameters": {
"decodelevel": "generalized"
},
"version": 1
}

5
qpdf/qtest/qpdf/optimize-images-inline-images-all-size.out Normal file
View File

@ -0,0 +1,5 @@
qpdf: image /IIm1 on page 1: optimizing image reduces size from 2391 to ...
qpdf: image /IIm2 on page 1: optimizing image reduces size from 2134996 to ...
qpdf: image /IIm3 on page 1: not optimizing because unable to decode data or data already uses DCT
qpdf: image /IIm4 on page 1: not optimizing because DCT compression does not reduce image size
qpdf: wrote file a.pdf

79
qpdf/qtest/qpdf/optimize-images-inline-images-json.out Normal file
View File

@ -0,0 +1,79 @@
{
"pages": [
{
"contents": [
"7 0 R"
],
"images": [
{
"bitspercomponent": 8,
"colorspace": "/DeviceRGB",
"decodeparms": [
null
],
"filter": [
"/FlateDecode"
],
"filterable": true,
"height": 56,
"name": "/IIm1",
"object": "8 0 R",
"width": 49
},
{
"bitspercomponent": 8,
"colorspace": "/DeviceRGB",
"decodeparms": [
null
],
"filter": [
"/DCTDecode"
],
"filterable": false,
"height": 675,
"name": "/IIm2",
"object": "9 0 R",
"width": 1200
},
{
"bitspercomponent": 8,
"colorspace": "/DeviceRGB",
"decodeparms": [
null
],
"filter": [
"/DCTDecode"
],
"filterable": false,
"height": 56,
"name": "/IIm3",
"object": "10 0 R",
"width": 49
},
{
"bitspercomponent": 8,
"colorspace": "/DeviceGray",
"decodeparms": [
null
],
"filter": [
"/FlateDecode"
],
"filterable": true,
"height": 8,
"name": "/IIm4",
"object": "11 0 R",
"width": 8
}
],
"label": null,
"object": "4 0 R",
"outlines": [],
"pageposfrom1": 1
}
],
"parameters": {
"decodelevel": "generalized"
},
"version": 1
}

18
qpdf/qtest/qpdf/optimize-images-inline-images-keep-all-json.out Normal file
View File

@ -0,0 +1,18 @@
{
"pages": [
{
"contents": [
"7 0 R"
],
"images": [],
"label": null,
"object": "4 0 R",
"outlines": [],
"pageposfrom1": 1
}
],
"parameters": {
"decodelevel": "generalized"
},
"version": 1
}

1
qpdf/qtest/qpdf/optimize-images-inline-images-keep-all.out Normal file
View File

@ -0,0 +1 @@
qpdf: wrote file a.pdf

64
qpdf/qtest/qpdf/optimize-images-inline-images-keep-some-json.out Normal file
View File

@ -0,0 +1,64 @@
{
"pages": [
{
"contents": [
"7 0 R"
],
"images": [
{
"bitspercomponent": 8,
"colorspace": "/DeviceRGB",
"decodeparms": [
null
],
"filter": [
"/FlateDecode"
],
"filterable": true,
"height": 56,
"name": "/IIm1",
"object": "8 0 R",
"width": 49
},
{
"bitspercomponent": 8,
"colorspace": "/DeviceRGB",
"decodeparms": [
null
],
"filter": [
"/DCTDecode"
],
"filterable": false,
"height": 675,
"name": "/IIm2",
"object": "9 0 R",
"width": 1200
},
{
"bitspercomponent": 8,
"colorspace": "/DeviceRGB",
"decodeparms": [
null
],
"filter": [
"/DCTDecode"
],
"filterable": false,
"height": 56,
"name": "/IIm3",
"object": "10 0 R",
"width": 49
}
],
"label": null,
"object": "4 0 R",
"outlines": [],
"pageposfrom1": 1
}
],
"parameters": {
"decodelevel": "generalized"
},
"version": 1
}

4
qpdf/qtest/qpdf/optimize-images-inline-images-keep-some.out Normal file
View File

@ -0,0 +1,4 @@
qpdf: image /IIm1 on page 1: not optimizing because image is smaller than requested minimum dimensions
qpdf: image /IIm2 on page 1: optimizing image reduces size from 2134996 to ...
qpdf: image /IIm3 on page 1: not optimizing because unable to decode data or data already uses DCT
qpdf: wrote file a.pdf

5
qpdf/qtest/qpdf/optimize-images-inline-images.out Normal file
View File

@ -0,0 +1,5 @@
qpdf: image /IIm1 on page 1: not optimizing because image is smaller than requested minimum dimensions
qpdf: image /IIm2 on page 1: optimizing image reduces size from 2134996 to ...
qpdf: image /IIm3 on page 1: not optimizing because unable to decode data or data already uses DCT
qpdf: image /IIm4 on page 1: not optimizing because image is smaller than requested minimum dimensions
qpdf: wrote file a.pdf