Showing posts with label crop pdfs. Show all posts
Showing posts with label crop pdfs. Show all posts

Monday, November 8, 2010

PDF Scissors Update - more information - and Briss

(ADDENDUM: Also see later responses from Gagan to commenter requests.)

UPDATE to PDF Scissors introduction yesterday plus Gagen's mention of BRISS - another PDF crop tool, found by him and also mentioned by a commenter to this post who would like to see them compared (me too -- there is much feedback on it at Briss's site but they are all by 'anonymous' so I hope others here can compare them.

The author, Gagan Mazed, responded to the thread at Teleread.com and I'll post most of that here though I'm not linking to the specific thread because it has info from 2008 that is now out of date.

  Gagan responded to a request I made for a bit more information and this was his answer, with a couple of corrections:
'Hi Andrys,

You are quite right, there is not really much text in the site http://www.pdfscissors.com.  The idea was that I would create a very simple tool that takes minimum effort to run the app (no script/no console mode, so that my wife can run it ;) ).  That’s why I used java web start, simply clicking the button launches the app directly from the web, so that ppl can try it by themselves and see if it does what they need (it’s just one click away).

About the tool, the way it works is that it “tells” how much area should be visible, it does not reflow text / do any modification to images.  If the ereader honors crop area (At least kindle 3 did for my test pdfs), setting to ‘fit-to-width’ zoom should show the cropped area nicely.  So the tool does not really care about landscape / portrait mode, also user is free to draw crop areas of any size and any numbers.  If only dropping the margin makes the content width readable in 6inch reader, then creating just one ‘crop area’ should work.

Oh one more note, although the tool runs using ‘webstart’... it does NOT upload any pdf file to any server, all calculations are handled locally and no information goes outside.  The tool itself does have any code that connects to internet.  So user should feel free to try any doc without privacy concern (I’ll add this note to the web).

This is a new born baby hobby project (so is the site), long way to go for improvement. Thanks for your feedback, really appreciated. '


@Andrys
Nice post at your blog, very explanatory. I quickly checked it, will check in details later.

About batch processing, same crop areas are applied to all pages, so user needs to draw them just once.

Btw, the first page shows all pages together with transparency (hard to explain, give it a try :) )

Commenter Tom Semple requested a few more refinements and I can't tell how far he got with trying it after finding that "File open" was offered after some cropping but not "File save" - so he may have stopped there.

Anonymous wrote that
'   "It 'stacks' the pages and "crops" all the pages similarly in the manner you specify.  It'd work well if all the pages are laid out in exactly the same way but won't work if each page is different. '

And commenter Brad reports this:
'   I tried PDF Scissors on a 400 page PDF ebook today.  It seems to be a handy little program.  It took about 15 min or so to do the 'stacking' of the book.
  Unfortunately the last three lines of every page were missing but I just estimated where to put the second box and everything was ok in the final cropped PDF.

  When you go to save, the button is mis-labeled 'Open' though it does act like 'Save'. I find reading an ebook in landscape normally gives three screens per page, with the third screen mostly blank.  Only two screens per page in portrait with PDF Scissors is a nice improvement.  Thanks for the heads up on this. '

(See later responses from Gagen Mazed in the Comments area of the introductory blog article on PDF Scissors.

Kindle 3's   (UK: Kindle 3's),   DX Graphite

Check often: Temporarily-free late-listed non-classics or recently published ones
  Guide to finding Free Kindle books and Sources.  Top 100 free bestsellers.
UK-Only: recently published non-classics, bestsellers, or highest-rated ones
    Also, UK customers should see the UK store's Top 100 free bestsellers.

Sunday, November 7, 2010

Tips: PDF Scissors tool - and reminder re non-Amazon free books - Update

I couldn't be here the last day and a half, and I hope any tips from this blog's comment areas and from my visits around the Kindle world will help.  I'll be doing more of these with one or two tips at a time so people can focus on those and have time to work with them, rather than tossing a bunch of them in one blog article which might be put aside until there's time and then forgotten.

TIP:  PDF SCISSORS
This is a new free tool to help enlarge the essential portion of a PDF when the words are too small to read and to divide the pages to ease navigation when viewing the results in Landscape mode.

PDFs with content too small to read
I JUST saw a comment at the a Teleread.Com comment area, offering a new free tool (on a good site) to help with PDFs that are comprised mostly of image pages and therefore cannot be converted to normal Kindle text format since there are no text fonts to enlarge while keeping within the screen frame.

This would be for the most adventurous among you as it is new and he feels people may find bugs, but he wrote it so he could get rid of margins in his PDFs to see the words on the pages better as they'd be larger, whether using a text-based or image-based page (images of a book's pages).  There are other tools that do this kind of thing, but using them requires comfort with Perl, Python or other scripts and files.

  Remember that mostly-text PDFs can be converted by Amazon (or by yourself using a free tool I've written about earlier) to text using standard size fonts which are of course larger and re-flowing the text lines to fit the a small e-reader screen.

Image-based PDF pages
  With pages that are actually pictures of pages, however, rather than actual text, that's not possible with the type of PDFs which are merely images of a physical book's pages.

  Images enlarged would just be larger than the screen and while we have zoom-in tools on the Kindle  (UK: K3), those are always awkward to use even on a computer with a large monitor but rewarding when you just need to look at an occasional table, figure, or diagram with tiny words inside them. Using Zoom-in and scrolling for each page is a no-go.

  The basic thought is that if the words of an image'd page are too small to read, we can put the Kindle into Landscape mode with the Aa key, which might help enlarge the image to fill the wider space across while keeping everything visible, requiring no scrolling to read it.   But until very recently, what we got instead was usually the same sized image with much wider margins on each side.

  The latest Amazon software for the Kindle 2, DX's and Kindle 3 (July 2010) included enhancements that can crop margins when viewing in Landscape mode so that the image or text can expand to fill the wide-screen mode.  That can make quite a difference.

  However, when the images have words that are really tiny, sometimes they're just not helped by rotating the page to Landscape mode unless there are margins we can crop, AND some images are of pages which themselves have humongous margins and a bit of text in the middle.

  With image-based pages there's no way to have something meant to be on 8-1/2" x 11" paper be highly readable on a 6" screen.  If you just enlarge it in vertical/Portrait mode, the lines go off the page.

  BUT, if there are wide margins, then if the margins ARE cropped, the image can enlarge to fill that new added space and the resolution will usually still be good because they were usually made for larger physical pages.

  It'd be nice if we could do this for Portrait mode too the way Amazon does this for Landscape mode.  The free utility utility offered may help with that although the video tutorial shows a person doing this for Landscape mode.

PDFS USING MULTIPLE COLUMNS
  You may also find yourself with a PDF with multiple columns that continue vertically for so long that you have to press Next Page to get the rest of the first column and then press Previous Page to go back to see the top of the 2nd column, etc. Very awkward and confusing too.

How PDF Scissors might help
  So, the new tool offers some help if it works well.  PDF Scissors by Gagan Mazed at SourceForge.net offers the following, in the author's words:
' What:

In short, It's a tool to crop pdfs.
Objective to create this, was to read pdf files (specially the scanned ones) easily in ebook readers, like kindle.
And by the way, it's a free tool! '
That's followed by a short, fast videoclip showing how it's done.  I used the Pause button to see the video'd procedure better, after clicking on it to take me to the larger version at YouTube since, ironically, it's too small on the PDF Scissors page to see what's happening.

The idea seems to be to crop out HALF of any given page (in Portrait mode), enlarge the width of the page-image by omitting or drastically minimizing the margins and then having the software batch all of these half pages together based on your cropping, ultimately putting each half-page onto a Landscape mode page, which will be especially helpful for multi-column pages as you won't have to scroll down and then back up with the awkward Next/Previous page button procedure.

I don't have time to try it myself tonight, but be sure to keep a copy of your PDF of course and try the utility on another copy.  Mazed goes on to say:
' How
  • Create crop areas to drop the white margins or crop columns.
  • Show all pages together in a stack.
    • Pages will be see-through with transparency.
    • This will help you a lot to decide how much to crop .
  • Create crop areas easily
    • Draw, resize, move crop areas
    • Copy / paste crop areas using usual Ctrl +C / Ctrl + V
Why:

I myself faced a lot of difficulties to read pdf in kindle (and mobile phones / internet tablets), specially the image based pdfs (scanned image pdfs). Got tired of zooming and scrolling while reading a nice book. So created this to help me 'dive into the reading'. I hope it helps you too.
'

This will be more work than many will care to put in, but if you have a PDF that's very important for you to read on an e-reader, it could be worth it.  And some will have assistants who can do the cropping for them.
  I think, though, that if Amazon ever lowers the price on its 9.7" Kindle DX Graphite (which is a beautiful reader), there'd be a run on them by people just needing a good-sized, extremely easy to read e-Ink based PDF reader.  See reactions by some hard-nosed Mobileread forum members who had long felt the Sony PRS-505 text contrast was the one to beat.  It's a very entertaining read.

UPDATE - See the FOLLOW-UP info from author PDF Scissors author Gagan Mazed and feedback from those who have tried the new tool so far.


TIP: REMINDER RE HOW TO FIND NON-AMAZON FREE BOOKS
This was written today in answer to someone who asked a question in the Comments area and is mildly modified for the blog.

Q:   I am in the UK and and trying to find all the free books everyone is talking about.  So far I only know how to get books directly from Amazon.  Are there other Kindle-friendly sites.  A friend told me I have to download free stuff from my computer and then use my wires to switch it from my computer to my kindle.  Is this correct?
  Thanks for your help.

A:   Anonymous in the UK,
At the bottom of every post for the last few months I include a link to free book sources and and how to find them everywhere.
  The shortcut for that is http://bit.ly/kfreelow3 .

  You'll see a lot of non-Amazon sites linked there (as well as the usual Amazon ones).
  (BUT I haven't added the Amazon UK free book links there yet though they are seen at the bottom of each recent blog post).

  Remember that when you get a free book from Amazon, it can be sync'd with your other Kindle-compatible devices because Amazon has the book on its servers.

  There are the usual good sources, such as feedbooks.com, mnybks.net, etc., but you can read about them at that free-books source/guide page.

  Also see (mentioned on that linked page):
  Project Gutenberg books downloadable from Project Gutenberg direct to your Kindle (no charge) using 'the Magic Catalog':
  http://bit.ly/kgutenb

  and
  How to convert any of 1 million or so free Google books to Kindle-readable books:
  http://bit.ly/milkbooks

  and
  The Internet Archive's 2 million+ free texts, most of them made readable on Kindle - see the article here at
  http://bit.ly/kwarchiveorg

That should get you started. There is also a link on that http://bit.ly/kfreelow3 page to the Amazon Kindle Community message thread in which other Kindle users give you information on how to get Kindle-readable books from other sites.


Kindle 3's   (UK: Kindle 3's),   DX Graphite

Check often: Temporarily-free late-listed non-classics or recently published ones
  Guide to finding Free Kindle books and Sources.  Top 100 free bestsellers.
UK-Only: recently published non-classics, bestsellers, or highest-rated ones
    Also, UK customers should see the UK store's Top 100 free bestsellers.