Bloating of PDFs
PDF is the ubiquitous format for file storage. It can be easily ported to any computer while maintaining the quality and formatting of the document. However, PDF files tend to bloat up easily with each edit. A PDF file size consists mainly of the size of images, embedded fonts, and file tags. An additional size increase happens when the PDFs are made searchable. The text of all the OCR-images within the PDF is stored as a separate, hidden layer within the PDF. The purpose of creating a file as a PDF is itself defeated when the file size forbids its transfer over a network. However, it is not a gigantic task to avoid such an occurrence. It is easy to shrink a PDF file.
Shrinking a PDF
The trick of shrinking PDF files is with the use of PDF file shrinking software. Although manual methods are present, the use of shrinking software proves to be efficient as it automates the manual tasks. The simplest way to reduce PDF file size is to use `Save As' instead of `Save'. While `Save' works faster, `Save As' creates a file with a smaller size footprint. This happens because when the PDF files are edited and simply `saved', the changes are made incrementally, and appended to the end of the file code. This consumes more memory for creating links within the code to locate the actual position of the text in the document. `Save As' simply re-creates the file from scratch with everything in sequence.
PDF Shrinking Software
There are other methods that are automated by PDF shrinking software. Since images take the maximum space, they are compressed using efficient techniques. Compression algorithms supported can consist of JPEG2000 Lossless and Lossy, JBIG2 Lossless and Lossy, ZIP and CCITT G4 and G3. The embedded fonts can be removed, and only the characters being used in the text retained. Web optimizations can be done for shrinking the PDF. This includes lowering the file resolution for web-only display. The image colors can be further optimized for web-display. The PDF shrinking software give a simple and intuitive interface and can shrink a PDF by almost 90%!