IntroducƟon
PDFProcessing
MathMLProcessing
Summary
Standard PDF document
L
A
T
E
Xsource code:
Text $\Pi(x) = \pi(x) +
\frac{1}{2}\pi(x^{1/2}) +
\frac{1}{3}\pi(x^{1/3}) + \cdots$
text.
AccessibilityIssuesinDigitalMathemaƟcalLibraries
UniversalLearningDesign,Brno,13thFebruary2013
Pdf text remover - delete, remove text from PDF file in C#.net, ASP.NET, MVC, Ajax, WinForms, WPF
Allow C# developers to use mature APIs to delete and remove text content from PDF document
how to delete text in pdf using acrobat professional; pdf text watermark remover
Pdf text remover - VB.NET PDF delete text library: delete, remove text from PDF file in vb.net, ASP.NET, MVC, Ajax, WinForms, WPF
VB.NET Programming Guide to Delete Text from PDF File
acrobat delete text in pdf; how to erase in pdf text
IntroducƟon
PDFProcessing
MathMLProcessing
Summary
Standard PDF document
PDF code:
BT
/F16 9.9626 Tf 148.712 707.125 Td [(T)83(ext)]TJ/F17 9.9626 Tf 23.247 0 Td
[(\005\050)]TJ/F20 9.9626 Tf 11.346 0 Td [(x)]TJ/F17 9.9626 Tf 5.694 0 Td
[(\051)-278(=)]TJ/F20 9.9626 Tf 17.158 0 Td [(\031)]TJ/F17 9.9626 Tf 6.036 0 Td
[(\050)]TJ/F20 9.9626 Tf 3.875 0 Td [(x)]TJ/F17 9.9626 Tf 5.694 0 Td
[(\051)-222(+)]TJ/F18 6.9738 Tf 17.247 3.923 Td [(1)]TJ
ET
AccessibilityIssuesinDigitalMathemaƟcalLibraries
UniversalLearningDesign,Brno,13thFebruary2013
C# PDF Password Library: add, remove, edit PDF file password in C#
An advanced PDF password remover component can help users unlock PDF file without password. Able to change password on adobe PDF document in C#.NET.
pdf editor delete text; erase text from pdf file
IntroducƟon
PDFProcessing
MathMLProcessing
Summary
Standard PDF document
Text obtained using Copy&Paste funcƟon of PDF reader:
Text Π() = () + 1
2(1/2) + 1
3(1/3) + · · · text.
AccessibilityIssuesinDigitalMathemaƟcalLibraries
UniversalLearningDesign,Brno,13thFebruary2013
IntroducƟon
PDFProcessing
MathMLProcessing
Summary
CopyMath-enabled PDF document
L
A
T
E
Xsource code:
Text $\Pi(x) = \pi(x) +
\frac{1}{2}\pi(x^{1/2}) +
\frac{1}{3}\pi(x^{1/3}) + \cdots$
text.
AccessibilityIssuesinDigitalMathemaƟcalLibraries
UniversalLearningDesign,Brno,13thFebruary2013
IntroducƟon
PDFProcessing
MathMLProcessing
Summary
CopyMath-enabled PDF document
PDF code:
BT
/F16 9.9626 Tf 148.712 707.125 Td [(T)83(ext)]TJ
ET
1 0 0 1 171.959 707.125 cm
/Span <<
/ActualText<245C506920287829203D205C706920287829202B205C66726163207B317D7B32
7D5C70692028785E7B312F327D29202B205C66726163207B317D7B337D5C70692028785E7B31
2F337D29202B205C63646F74732024> >> BDC
1 0 0 1 -171.959 -707.125 cm
BT
/F17 9.9626 Tf 171.959 707.125 Td [(\005\050)]TJ/F20 9.9626 Tf 11.346 0 Td
[(x)]TJ/F17 9.9626 Tf 5.694 0 Td [(\051)-278(=)]TJ/F20 9.9626 Tf 17.158 0 Td
[(\031)]TJ/F17 9.9626 Tf 6.036 0 Td [(\050)]TJ/F20 9.9626 Tf 3.875 0 Td
[(x)]TJ/F17 9.9626 Tf 5.694 0 Td [(\051)-222(+)]TJ/F18 6.9738 Tf 17.247 3.923
Td [(1)]TJ
ET
AccessibilityIssuesinDigitalMathemaƟcalLibraries
UniversalLearningDesign,Brno,13thFebruary2013
IntroducƟon
PDFProcessing
MathMLProcessing
Summary
CopyMath-enabled PDF document
Text obtained using Copy&Paste funcƟon of PDF reader:
Text $\Pi (x) = \pi (x) +
\frac {1}{2}\pi (x^{1/2}) +
\frac {1}{3}\pi (x^{1/3}) + \cdots $
text.
AccessibilityIssuesinDigitalMathemaƟcalLibraries
UniversalLearningDesign,Brno,13thFebruary2013
IntroducƟon
PDFProcessing
MathMLProcessing
Summary
CopyMath ImplementaƟon
• Weneedtoadd\pdfliteralatthebeginningandendofevery
mathemaƟcal environment.
• Thedollarsign($)isacƟvatedandredefined.
• ItisnecessarytokeeptrackofnestedmathemaƟcalenvironments.
• SimpleredefiniƟonof
A
M
S
-L
A
T
E
XmathemaƟcal environments isnot
possible.
• SƟllexperimental.
AccessibilityIssuesinDigitalMathemaƟcalLibraries
UniversalLearningDesign,Brno,13thFebruary2013
IntroducƟon
PDFProcessing
MathMLProcessing
Summary
MathML Processing
1
IntroducƟon
2
PDF Processing
3
MathML Processing
MakingMathsAccessible
MathML Processing
4
Summary
AccessibilityIssuesinDigitalMathemaƟcalLibraries
UniversalLearningDesign,Brno,13thFebruary2013
IntroducƟon
PDFProcessing
MathMLProcessing
Summary
Reading Formulae Aloud
• UnderdevelopmentbyMarošKucbelatFacultyofInformaƟcs
Masaryk University.
Input XML file isprocessed and every MathML block isconverted to
plain text to be read aloud by aspeech synthesizer soŌware.
• Englishiscurrentlytheonlysupportedlanguage.
• OutputisagaininavalidXMLformat.
• Homepage:<hƩps://code.google.com/p/mathml-converter/>
AccessibilityIssuesinDigitalMathemaƟcalLibraries
UniversalLearningDesign,Brno,13thFebruary2013
IntroducƟon
PDFProcessing
MathMLProcessing
Summary
MathML Converter Example
<?xml version=”1.0” encoding=”UTF-8”?>
<math xmlns=”http://www.w3.org/1998/Math/MathML”>
<mrow>
<msubsup>
<mo>&#8721;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>0</mn>
</mrow>
<mn>10</mn>
</msubsup>
<mrow>
<mi>i</mi>
<mo>+</mo>
<mn>7</mn>
</mrow>
</mrow>
</math>
ଵ଴
௜ୀ଴
㕖+ 7
<?xml version=”1.0” encoding=”UTF-8”?>
<math xmlns=”http://code.google.com/p/mathml-converter/”>
sum over i from zero to ten of i plus seven
</math>
AccessibilityIssuesinDigitalMathemaƟcalLibraries
UniversalLearningDesign,Brno,13thFebruary2013
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