[Taxacom] Page size of BHL generated PDFs

Dilrukshan Wijesinghe dpwijesinghe at yahoo.com
Wed Mar 27 12:34:52 CDT 2013

No, I am not scanning actual hardcopies, I am simply using BHL's PDF 
generating capability. If you have used this feature you might know that you can select a range of pages (for example, a specific paper) from a periodical in the BHL collection, e.g. Annals and Magazine of 
Natural History (http://www.biodiversitylibrary.org/bibliography/15774#/summary) and BHL will generate a PDF and email you the link for downloading the 
PDF. This is a very useful feature since you can build your own collection of PDFs of the older taxonomic literature that might be of interest to you. This feature used to work fine before but my recent attempts have all 
resulted in page sizes much larger than the original. Not sure what 
needs to be adjusted on BHL.


D. P. Wijesinghe
dpwijesinghe at yahoo.com

 From: Steve Halford <halford at sfu.ca>
To: Dilrukshan Wijesinghe <dpwijesinghe at yahoo.com> 
Cc: "taxacom at mailman.nhm.ku.edu" <taxacom at mailman.nhm.ku.edu> 
Sent: Wednesday, March 27, 2013 12:35 PM
Subject: Re: [Taxacom] Page size of BHL generated PDFs

 Are you scanning the pages at high resolution?  A higher than necessary resolution will result in a page displaying on screen much larger than the original.  Usually about 150 dots per inch is sufficient for a clear image.


Steve Halford (halford at sfu.ca)
Museum Technician                
Department of Biological Sciences
Simon Fraser University
8888 University Drive         
Burnaby, B.C. Canada               Phone  
V5A 1S6                                  778-782-3461

On Wed, Mar 27, 2013 at 5:34 AM, Dilrukshan Wijesinghe <dpwijesinghe at yahoo.com> wrote:

My recent attempts to make PDFs from journals in the Biodiversiy Heritage Library collection have resulted in PDFs with very large page sizes - they have to be viewed at about 25-30% or less to appear 'normal'. Clearly I must be doing something wrong. Any suggestions for ensuring the PDFs generated retain their original page sizes would be appreciated.
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