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While many factors affect performance,
one of the primary ways to optimize performance is to keep the file
size of the forms as small as possible.
The file size of forms affects performance when the server renders
forms, when transferring forms over slow communication channels,
or when storing or retrieving forms from near-line storage.
Consider these general tips to help minimize the file size of
forms:
Avoid using fonts that must be embedded, particularly
for field objects. Embedded fonts cannot be subset.
Use embedded images instead of linked images. By default,
images are linked. To know more about the differences between embedding
versus linking images, see this article.
Use a compressed graphic format such as JPEG or GIF.
Use Palette or Monochrome images for color. Avoid using 24-bit
color formats.
Be aware that generating accessible forms affects performance.
Use only the minimum number of objects in forms and keep
objects as simple as possible.
Consider these general tips to improve the performance of interactive
forms:
For
forms that submit data to Forms, choose the XML Data (XML) format
for the data. See Submitting data using a button.
Enable
form caching to increase the performance of the rendering of a form.
When a form is cached, the data is merged into a pregenerated presentation.
Forms whose layout adjusts to accommodate data can always be cached.
Forms that have a fixed layout can also be cached, but some restrictions
apply. For information about the restrictions, see Form caching.
For Forms to cache forms that have a fixed layout, you must select
the form caching option in Designer for each form you create.
Consider these general tips to improve the performance of non-interactive forms:
Avoid validation constructs and other interactive form
features, such as data entry validations and edit masks.
These features
cause Forms to render interactive forms. In general, non-interactive
forms have a smaller file size than interactive forms and can be
rendered more quickly.
If the form is intended
for printing, interactive features provide no added benefit. For
example, Designer can generate validation scripts for particular objects
for forms that are bound to XML schemas. For interactive forms,
these validation scripts ensure that data entered by the user complies
with the schema specification. For example, a validation script
may check that a value provided for a numeric object is an integer
between 4 and 9. Non-interactive forms do not accept user input
and, therefore, the validation scripts are not used. Turning off
the generation of these scripts improves performance by eliminating
the processing to execute them. See Set field generation options.
Batch forms for processing.
When rendering multiple
instances of a single form, such as bills for different customers,
gather the data for all the instances in a single data file and
render the individual forms from this file. This approach is more
efficient than processing froms individually. However, when batching
different forms, group forms before rendering them. For example,
if Invoices and Packing Lists are run at the same time, group and
run all the Invoices, followed by all Packing Lists.
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