PDF to
Excel converts PDF files that cannot be converted into Excel format files. It
is commonly used by professionals who manage files and record work data.
Perhaps the general PDF service website can meet the needs of most people, but
this article introduces you the PDF to Excel tool that uses the best strategy.
PDF to Excel Conversion
Strategies
Build an automated library
for extraction
When automating the process of extracting text
from PDFs, you typically use a library that handles PDFs. There are also two
steps: first find the range of characters to extract, tell the library the
range to find, and then perform text extraction.
When considering using the library to
automatically extract text , PDF
to Excel also takes
two points into consideration:
1、Considerations
When Specifying the Range of Text to Extract
The coordinate system of the tool to use .
The range of glyphs in the font .
characters in the PDF .
2. Ingenuity when extracting data from a PDF whose layout has changed
Conversion strategy when
specifying a text range
tool coordinate system
The first point is the coordinate system of
the tool to be used. If the coordinate value of a given rectangle is
"upper left (6, 8) - lower right (10, 14)" as shown in the figure
below, where is the range of the rectangle?
It depends on the coordinate system, not just
the coordinate values. Specifically, it depends on the location of the origin,
the orientation of the x/y axes, the units of length, and the rotation of the
page. The units of length and the origin position are different, so even though
the coordinate values are the same, the actual position of the rectangle will
be different.
In AbcdPDF 's previous products, the PDF viewer and
text extraction commands had different length units and different origin
positions. Now, the coordinate values inspected by the viewer are transformed according
to the command's coordinate system , resulting in higher quality transformations.
The range of glyphs in the font
Set a black border to the text range. This
looks fine, but I can't actually extract the text. Characters are represented
by font glyphs, which may have a larger range than apparent characters. A range
needs to be specified to contain the glyphs, a large red bordered range works
well. It is necessary for PDF to Excel to specify the range while knowing
such glyphs.
Summarize
What are
the best PDF to Excel tools? The above introduces you the best strategy adopted
by the AbcdPDF platform for PDF to Excel. Of course, as a user, you don't need
to master all the conversion strategies of the tool, you just need to enjoy the
unlimited convenience brought by this online tool for free.
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