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Handling Mixed Input Files
Files often have mixed content: flowing text, tables and forms. In many
cases you can process these files with the setting Standard Document
and receive good results. For more precise control, your can use page
ranges to separate forms and tables and convert them separately. For
example, to best unlock a file with two pages of illustrated text, followed
by a one-page table you want to do calculations on, and finally a
three-page form - convert pages 1 and 2 as Standard Document, page 3 as
Spreadsheet and pages 4-6 as Form.
How do PDF files work?
PDF files display texts correctly wherever they are viewed because they
carry their typographic information with them. Fonts in the document
are embedded in the PDF file and are used after distribution to
reconstruct the document. The display does not depend on the needed
font files being available on the viewing machine, nor on the language of
its operating system.
PDF documents present their pages as images. They can be marked-up
and commented, but the ability to change the basic text is limited. Most
PDF files can be searched, because the file has two layers. There is an
image layer that is presented on-screen. Behind that there is usually a
text layer that can be matched to the characters displayed on the screen.
Display layer
Text layer