Hi,
That didn't happen to me, but maybe it did happen to you with another file.
Another solution would be to pass your own properties file, and it
should have this content:
=======================
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This table is maps PDF stream operators to concrete OperatorProcessor
# subclasses that are used by the PDFStreamEngine class to interpret the
# PDF document. The classes configured here allow the PDFTextStripper
# subclass of PDFStreamEngine to extract text content of the document.
BT = org.apache.pdfbox.util.operator.BeginText
cm = org.apache.pdfbox.util.operator.Concatenate
Do = org.apache.pdfbox.util.operator.Invoke
ET = org.apache.pdfbox.util.operator.EndText
gs = org.apache.pdfbox.util.operator.SetGraphicsStateParameters
q = org.apache.pdfbox.util.operator.GSave
Q = org.apache.pdfbox.util.operator.GRestore
T* = org.apache.pdfbox.util.operator.NextLine
Tc = org.apache.pdfbox.util.operator.SetCharSpacing
Td = org.apache.pdfbox.util.operator.MoveText
TD = org.apache.pdfbox.util.operator.MoveTextSetLeading
Tf = org.apache.pdfbox.util.operator.SetTextFont
Tj = org.apache.pdfbox.util.operator.ShowText
TJ = org.apache.pdfbox.util.operator.ShowTextGlyph
TL = org.apache.pdfbox.util.operator.SetTextLeading
Tm = org.apache.pdfbox.util.operator.SetMatrix
Tr = org.apache.pdfbox.util.operator.SetTextRenderingMode
Ts = org.apache.pdfbox.util.operator.SetTextRise
Tw = org.apache.pdfbox.util.operator.SetWordSpacing
Tz = org.apache.pdfbox.util.operator.SetHorizontalTextScaling
w = org.apache.pdfbox.util.operator.SetLineWidth
\' = org.apache.pdfbox.util.operator.MoveAndShow
\" = org.apache.pdfbox.util.operator.SetMoveAndShow
CS=org.apache.pdfbox.util.operator.SetStrokingColorSpace
cs=org.apache.pdfbox.util.operator.SetNonStrokingColorSpace
rg=org.apache.pdfbox.util.operator.SetNonStrokingRGBColor
G=org.apache.pdfbox.util.operator.SetStrokingGrayColor
g=org.apache.pdfbox.util.operator.SetNonStrokingGrayColor
K=org.apache.pdfbox.util.operator.SetStrokingCMYKColor
k=org.apache.pdfbox.util.operator.SetNonStrokingCMYKColor
RG=org.apache.pdfbox.util.operator.SetStrokingRGBColor
rg=org.apache.pdfbox.util.operator.SetNonStrokingRGBColor
SC=org.apache.pdfbox.util.operator.SetStrokingColor
sc=org.apache.pdfbox.util.operator.SetNonStrokingColor
SCN=org.apache.pdfbox.util.operator.SetStrokingColor
scn=org.apache.pdfbox.util.operator.SetNonStrokingColor
# The following operators are not relevant to text extraction,
# so we can silently ignore them.
b
B
b*
B*
BDC
BI
BMC
BX
c
d
d0
d1
DP
El
EMC
EX
f
F
f*
h
i
ID
j
J
l
m
M
MP
n
re
ri
s
S
sh
v
W
W*
y
=======================
Tilman
Am 27.07.2014 15:54, schrieb -A:
Tilman;
That is somewhat embarrassing. At one point I brought this to the mailing
list (because of the following warning) and was told to remove that line
because the TextStripper wasn't actually a PageDrawer. The functionality
still worked after that, however.
Is there a way to do this without the warning, perhaps something within
PageDrawer?
Thank you,
-Aaron
WARNING: java.lang.ClassCastException: IncrementalPDFStripper cannot be
cast to org.apache.pdfbox.pdfviewer.PageDrawer
java.lang.ClassCastException: IncrementalPDFStripper cannot be cast to
org.apache.pdfbox.pdfviewer.PageDrawer
at
org.apache.pdfbox.util.operator.pagedrawer.AppendRectangleToPath.process(AppendRectangleToPath.java:46)
at
org.apache.pdfbox.util.PDFStreamEngine.processOperator(PDFStreamEngine.java:557)
at
org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:268)
at
org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:235)
at
org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:215)
at IncrementalPDFStripper.containsRed(IncrementalPDFStripper.java:90)
at IncrementalPDFStripper.main(IncrementalPDFStripper.java:56)
On Sun, Jul 27, 2014 at 5:47 AM, Tilman Hausherr <thaush...@t-online.de>
wrote:
It is even easier than I thought - replace super() with this:
super(ResourceLoader.loadProperties("org/apache/
pdfbox/resources/PageDrawer.properties", true));
Tilman
Am 27.07.2014 13:03, schrieb Tilman Hausherr:
After having written the text below, I tested by including the "rg"
operator in the properties list and now it worked. I also tested deleting
your println and instead adding this if the text is red:
System.out.print (textPos.getCharacter());
and so I got this output:
21_Key .1295 R~Wall Prof LinP 0.003 0.004 0.000 true
which is exactly what is red in the PDF.
Another way (probably better) to do it would probably be to not derive
PDFTextStripper but |PDFStreamEngine and construct it with||
ResourceLoader.loadProperties("org/apache/pdfbox/resources/PageDrawer.properties")|
see also http://stackoverflow.com/a/9157714/535646
Tilman
Am 27.07.2014 12:14, schrieb Tilman Hausherr:
Hi,
Do you still have the code that worked?
I'm not the text extraction specialist here, but what I did was to look
in the uncompressed source of the PDF. The stream has code like this:
0 0 0 rg
0 0.5019 0 rg
1 0 0 rg
The first line sets to black, the second to green, the third to red. And
from what I saw, it can't work at all, because the "rg" operator isn't
processed when extracting text, because PDFTextStripper.properties doesn't
contain the "rg" operator. (The operator is in another list, which is used
when rendering)
So that is what puzzles me. I think it can't work at all. But you said
it did work at a time.
Tilman
Am 27.07.2014 07:43, schrieb Tilman Hausherr:
Hi,
Please upload the PDF somewhere and post the URL, PDF files are removed
from the mailing list.
Tilman
Am 27.07.2014 02:35, schrieb -A:
Hello again. I've been trying to figure out this issue that has come
up for me and in my research I found someone posting on StackOverflow (
http://stackoverflow.com/questions/10844271/how-to-get-
font-color-using-pdfbox) a similar issue where they could not read
any colors from a PDF. The user posted the code and someone else took it,
ran it, and reported that it worked. The users approach was different than
mine, but alas.
I'm not sure at this point what is going on. I have stepped through
each individual character and checked the PDGraphicsState object, and even
when I am looking at an open file with visibly red text (attached) the
debugger only reports DeviceGray. If I print out the ColorSpace name from
the PDGraphicsState this is what is printed - for every character.
I would appreciate if someone could perhaps run the attached text
stripper with the attached PDF file and report back if it actually prints
trueinstead of false, as it does for me. Since I saw this occurrence
elsewhere I'd like to rule that out - in case an IDE setting of some sort
may be causing this?
It should be noted that I began using PDFBox with 1.8.5 and had this
code working fine. Still with 1.8.5 yesterday it was failing. Upgrading to
1.8.6 yielded the same results.
If this is an actual issue I do not mind attempting to solve it if
someone may have a general idea where to point me as to prevent needless
meddling with graphics state objects. Or, if this should be reported I can
do that as well.
Thanks!
-Aaron
*Previous Message:*
*
*
*
*
I've attached an updated stripper file with the only addition being a
main function to test the class specifically.
When ran with the PDF I have also attached it indeed does not
recognize the red text.
At this point it seems that this issue is solely dependent on PDFBox.
I'll stay tuned for some insight hopefully. If any other information is
needed, let me know!
