The CurrCon Java Applet displays prices on this
web page converted with today’s exchange rates into your local international currency,
e.g. Euros, US dollars, Canadian dollars, British Pounds, Indian Rupees…
CurrCon requires an up-to-date browser
and Java version 1.8, preferably 1.8.0_131.
If you can’t see the prices in your local currency,
Troubleshoot. Use Firefox for best results.
PDF (Portable Document Format). Adobe’s platform-independent format for
distributing documents. You can recognize them by the *.pdf
extension. You will find them commonly on commercial websites to distribute product
literature or complex technical documentation. PDF
allows searching and scrolling, just like HTML (Hypertext Markup Language)
in a browser.
Similarities to HTML
is similar to HTML
Both let you prepare documents for the web, hard disk or
CD (Compact Disc).
You can convert HTML
Both support hypertext links.
Both support embedded images, sound files and movies.
Both support forms you fill in and submit. PDF
calls that FDF (Forms Data Format)
Both will display the first part of a document even before the whole document
Differences From HTML
is different from HTML
It is oriented around pages. HTML
is oriented around documents with no page breaks. PDF
does not have a way of reflowing page breaks the way you would in PageMaker.
is not designed to be modified. You modify the original documents, perhaps in MS
Word format, then regenerate the PDF
you modify the master HTML
looks identical on all machines. HTML
adjusts itself to the resolutions and fonts available the viewing machine.
requires proprietary to tools to create. HTML
can be created with tools as simple as NOTEPAD.
documents are designed to be printed. HTML
documents are not. Most printers cannot understand PDF
Software must convert the PDF
to the native printer language, possibly PostScript. A few printers, such as the
HP (Hewlett Packard)
Color LaserJet 4650 series, can understand PDF
Adobe pulled off a near miracle, persuading the major font companies to allow
their fonts to be embedded in PDF
files, without royalties. There is no way to do this with standard
CSS (Cascading Style Sheets)
or Java. If you include the fonts, everyone will see the document with the proper
fonts. If you don’t, people without the fonts installed will see the
document with a rough approximation to the correct font using Adobe’s
morphing master font technology. The document will be rendered with whatever
fonts the end user has available. They may look absolutely nothing like the ones
you used to compose the document. Only the glyphs you actually use in the
document are included. If you don’t want the bulk, the distiller will save
some information about the font metrics instead, then the viewer’s reader
software can warp one of the installed fonts to create a substitute that will at
least have the same spacing even if it looks nothing like the original font.
documents may include Adobe PostScript Type 1 or Microsoft TrueType fonts.
documents normally never embed fonts. I don’t even know what the format is
when they do.
With HTML, the person viewing an HTML
document can override all your stylistic choices. With PDF
he will always view the document exactly as you designed it.
Advantages of PDF
The advantages of PDF
It is a lot less work to prepare a PDF
document if you already have either a word processing document or a printed page.
Preparing the HTML
document is often almost as much work as retyping from scratch.
You can rapidly create documents for the web from printed materials, including
graphic images. The raw materials might be MS Word documents, PostScript files,
books, or brochures. You don’t need a lot of manual keying and touchup the
way you would to create the equivalent HTML
documents. All you have to do is scan a page, or print a word processing document
to a special printer driver and Adobe Acrobat does the rest. The conversion program
is slow, but requires little effort to touch up the results.
gives you absolute control over the final look of the document, unlike
where you can only give hints.
You can control whether the reader is permitted to cut/paste or make hard copy
printouts. You can control whether others are permitted to modify the document.
Clever users can bypass these restrictions.
documents print properly with page breaks in the right places.
documents break printed pages half way through images or even half way through a
line of text. HTML
printouts are a mess!
is much more compact than the equivalent set of graphics images.
is essentially an OCRed document in modified PostScript format. Part of the secret
of the compactness is that standard fonts need not be included as part of the
document. They come with the viewer. However, PDF
is not as compact as HTML. It contains much more precise font and positioning
documents come with a miniature search engine built into every document.
documents have automatically generated table of contents, thumbnails and
If you buy Acrobat 4, you can add annotations and highlights to documents. You
can have many people adding comments to a document. You can filter annotations by
person or date. You can sort them by person, date, type or page number. Annotations
may be comments, stamps (e.g. approved, confidential), highlighting, thumbtacks,
paperclips or scribbles.
has article threading. If you scan in a magazine, you can leave it exactly the same
as the original layout. The viewer program will automatically guide the reader
through the disconnected pieces of an article. With HTML
you must manually cut and paste the various pieces into separate documents, one for
each article. You have to show Acrobat the flow of each article, but this is a tiny
fraction the work of cutting and pasting the fragments into a new document for each
documents can be digitally signed. You can be sure the document is not a forgery
and has not been tampered with or damaged.
It is easy to take an existing paper form and convert it for electronic use in
you must start from scratch and design the form electronically. Designing forms is
much simpler in PDF. In HTML
requires a programmer. Anyone could do it in Acrobat/ PDF
. You can
also design forms electronically in PDF
, or use
any graphics, word processor or publishing software to design them.
Apple Mac OS (Operating System)
X uses the PDF
as the basis of its Quartz imaging model.
PDFs (Portable Document Formats) are self contained. You don’t need extra fonts,
and style sheets to make them work.
The disadvantages of PDF
To be charitable, exporting data from PDF
in incompetent. Data is scrambled, missing, not properly delimited,
reordered… You can try two ways: save as text and copy paste page by page.
They give different results.
is supported under W95, W98, Me, NT, W2K, XP, W2003, Vista, W2008, W7-32, W7-64, W8-32, W8-64, W2012, W10-32 and W10-64
and Mac only. HTML
is supported on nearly everything.
documents are bulkier than HTML
is oriented around fixed size pages. You turn pages electronically much the way you
would pages in a magazine, or use a hand tool to drag the paper. You can’t
scroll the way you are used to with the mouse wheel or scrollbars, though you can
still scroll after a fashion. Usually you navigate by clicking repeatedly, by using
the hand tool, or by following the table of contents. In
document in one giant page you can scroll through continuously. I think
maps more naturally to the screen.
Search engines do not index PDF
documents. They can’t see inside them. In 2001 February, the Google search
engine started indexing PDF
documents. Google is the fastest and most accurate of the search engines, so the
rest should follow suit.
People who wish to read the documents must install the Acrobat viewer to be
able to see the documents. It is free, but that is still a hassle that will
discourage novices from looking at your documents.
is proprietary to Adobe. You must purchase the Acrobat program before you can
documents. There are now some third party tools for creating
documents and some add ons that work with Acrobat, but chances are you will need
Acrobat itself at the core. There are a number of tools that are optional, but
highly desirable, for preparing PDF
documents, some costing over
uses only the bulky AIF (Audio Interchange File)
and WAV file sound formats. It does not support the much more compact MP3 format.
supports Apple QuickTime and AVI (Audio Video Interleave)
movie formats only. People who view your documents still must separately install
the QuickTime and AVI
engines to see the movies. HTML
supports dozens of other movie formats.
forms are for submitting data only, either to a database, to a
CGI (Common Gateway Interface)
server or to email. They are not suitable for doing inquiries the way
forms are. I am not 100% sure of this point. The Adobe
representative I talked to did not seem to understand my questions in this area.
documents embed the fonts needed to view them, even if the user already has them
installed. This makes the PDF
files bulkier than they need be and slows downloading them. Ideally, the font
files would be separate and downloaded only if needed and then cached so they
would not need to be downloaded every time.
Adobe Reader costs extra if you want to export in Word or Excel format.
You don’t have to choose. You can prepare your documents in
format, then export in HTML and post both on your website, reaping the benefits
of both. Let your users decide which they prefer to view. Search engines will bring
people to your site who then may choose look at the PDF
especially if they want a printed hard copy.
Entrofocus PitStop is a plug-in for Acrobat that solves many of the small
irritations with Adobe Acrobat. It comes highly recommended.
JPedal is a Java library for
reading and displaying PDF
files. It has a JWS (Java Web Start)
viewer that lets you view a PDF
file on any Java-supported platform. You can extract text or images from
files. You can extract data from FDF
forms. There are three versions: There is a stripped down free open source version.
The Enterprise version is
for a single seat and
for a site licence. You need to negotiate a licence to include it in your distributed
You can use OCR (Optical Character Recognition) software such as Omnipage to extract data from