All Questions
34 questions
2
votes
2
answers
150
views
How to prevent large file size in JPEG-PDF roundtrip conversion?
TL;DR: File size doubled in roundtrip conversion between JPEG and PDF. Tools used : poppler and imagemagick
I am doing this
Extract images from a pdf containing only images (scanned document), via ...
0
votes
0
answers
621
views
GIMP advice on JPG to PDF conversion
When I convert JPG files to PDF using GIMP the result is usually a much bigger file.
The first step upon importing is the dialog for a conversion that is titled "convert to RGB working space"...
- 1,448
1
vote
2
answers
371
views
Is converting images to pdf lossy?
Converting an image to pdf then back to image format:
$ convert in.jpeg out.pdf
$ convert out.pdf out.jpg
$ diff in.jpeg out.jpg
> Binary files in.jpeg and out.jpg differ
Trying different ...
- 55
0
votes
2
answers
3k
views
Export Powerpoint to a single PDF, each page as an image
I have a Powerpoint presentation. I want to turn it into a PDF.
If I Save a Copy and use PDF, there are least two issues that I want to avoid:
Text is selectable.
This could be perhaps avoided via ...
2
votes
3
answers
2k
views
Remove jpeg artifacts for scanned texts
I have a scanned PDF of a textbook, but the PDF is aggressively compressed so lots of JPEG artifacts are present and affects its readability. Example:
I tried a variety of method to fix it but the ...
- 185
2
votes
1
answer
356
views
Lossless or near lossless compression options for PDFs containing grayscale with JPEG2000?
I have some older books (pre 1900) that I'm working on archiving to a digital format. Most of the time using greyscale is satisfactory in terms of color preservation, however I'm having trouble with ...
- 1,311
1
vote
1
answer
3k
views
Failing to convert JPG to PDF with GhostScript
I'm trying to apply a recipe shared in other posts, but it fails for a reason I can't understand:
c:\tmp>gswin64c -sDEVICE=pdfwrite -o output.pdf "c:\Program Files\gs\gs9.50\lib\viewjpeg.ps" -c "(...
- 321
1
vote
2
answers
101
views
Different size when scanning depending on the method (USB, WiFi direct to Mac and PC)
I scanned a paper today using three different methods:
USB inserted into the scanner (an HP Color LaserJet MFP M477fdw)
WiFi direct to Image Capture on a Mac
WiFi direct to Scan on Windows 10
The ...
- 886
0
votes
0
answers
52
views
Is replacing PNGs with JPGs the solution to generating reliable images in PDF files?
I generated a PDF from a document that contains many images, mostly JPGs, but some PNGs.
In the doc (Libre Office .odt), the page in question looks like this:
When I "exported" the document to a PDF,...
0
votes
1
answer
33
views
Tiff or JPG in PDF?
I have a bunch of scanned PDF (e.g. picturebased pdfs). When I run them through "pdf optimizers" online they frequently are reduced 70-80 % in size with hardly any noticeable difference in quality. I ...
- 886
2
votes
4
answers
197
views
Save PDF as JPEG, but only specific pages not full pdf
I have a pdf of +50 pages. I want to save page 25 as a jpeg. Is this possible to do without saving the full pdf as jpeg?
- 401
2
votes
1
answer
138
views
What's the best method for JPEG text manipulation?
I have a relatively simple graphic; a technical diagram with various bits of text throughout.
The text is in another language (Czech/Slovak). It's printed clearly enough to be accurately ...
- 2,871
2
votes
0
answers
277
views
Importing JPEGs into Acrobat ruins edges
I'm working with a PDF in Adobe Acrobat XI Pro, and trying to import a relatively high quality JPEG. Despite disabling any compression-related options that I can see, the edges of the imported image ...
- 13.4k
0
votes
0
answers
1k
views
Batch convert multi page TIFFs to multi page or individual page PDFs on MAC
I have hundreds of Multi page TIFFs that I need to turn into individual image JPG files (file names not important).
Some had already been converted into multi page PDFs and I found a solution using ...
- 11
3
votes
1
answer
1k
views
When a PDF file only contains a scanned image, is it just a JPG image inside a PDF container?
Many scanners can scan a page into a PDF file.
When this is done, is the PDF file really just a container that contains a single image? Is that image typically a JPG image, a PDF image, or a ...
- 9,357
1
vote
1
answer
2k
views
Imagemagick changes page size when converting from pdf to jpg
I want to convert a pdf to jpg.
The page size is not standard.
(pdf here: imslp)
When I convert the pdf to jpg with
convert -density 300 sheet.pdf sheet.jpg, I get this: Converted image. (The ...
- 143
0
votes
2
answers
140
views
JPGs created with Imagemagick won't display on TV
I am trying to convert a free ebook from PNG to JPG, so I can read it on my Sony Bravia KDL-40R470.
This is how I converted the PNG file:
convert -density 117 -quality 80 progit.pdf progit.jpg
...
- 203
1
vote
2
answers
3k
views
How can I convert a large PDF to PNG?
I want to convert a very large PDF file (>2GB) to a PNG (or JPEG) file so that it is easier to open and look at.
I want to do that without opening the PDF file since it is too large to be opened.
Is ...
- 111
0
votes
1
answer
3k
views
The JPG file on my Open Office document is blurry when exported to PDF
I have tried both Open Office and Word, and the issue is the same. All looks fine until the document is exported to PDF, then the JPG image on the document becomes blurry. I hope someone can help.
- 1
0
votes
4
answers
12k
views
Convert PDF to JPG without Imagemagick
Is there a way to convert a common UTF-8 encoded PDF to a JPG without using ImageMagick or Ghostscript?
The reason I'm asking is, that I have to replace or "simply" double layer a small part (date) ...
- 109
2
votes
1
answer
712
views
Why does saving a JPEG as PDF increase the filesize 7 times?
I have a JPEG of 440KB. When I open it in Preview on Mountain Lion and save it as a PDF the PDF is 2.8MB. The PDF version is 1.4 and the PDF producer is Mac OS X 10.8.2 Quartz PDFContext
Why has the ...
- 5,816
0
votes
1
answer
649
views
PDF to JPEG conversion algorithm
I was wondering how the snipping tool works while cropping any vector image, for example an image on pdf file, to jpeg file. Does it use rasterization? Is there any way to convert an image on a PDF ...
5
votes
2
answers
2k
views
Getting N jpeg images from N-Pages PDF
I've a PDF composed by N pages.
I want to convert this PDF in N jpeg images (by command line, no Php, Java or other programming languages).
I'm trying to do this with GHOSTSCRIPT but the output ...
- 153
5
votes
4
answers
14k
views
Convert Multi-Page PDF to Single JPEG or TIFF File on Mac
I am trying to submit a paper to an academic journal. My file is in PDF form. Unfortunately, the journal only accepts papers as JPEGs or TIFFs.
I can turn a single page into a JPEG using preview. ...
- 221
3
votes
1
answer
2k
views
Using convert to covert multiple jpg files to pdf - pdf quality
I used the command
convert *.jpg out.pdf
to convert multiple jpg files to pdf. But the quality of the output pdf is very low. Is there a way I can increase the quality?
- 251
18
votes
5
answers
28k
views
How to batch combine JPEG's from folders into PDF's
I have a about 500 folders with images inside. Is there a way I could batch convert this so that I get .pdf files that contain all images inside as pages?
EDIT:
There should be 500 PDF's created, ...
- 351
4
votes
2
answers
6k
views
JPG files are too small when converted from PDF with imagemagick
I'm on Ubuntu 10.04 with imagemagick. I used this command:
convert myfile.pdf -density 300 file.jpg
This works well, but the JPGs are only about an inch high. How can I preserve the paper size in ...
- 41
0
votes
2
answers
412
views
Image to PDF quality
I am converting multiple jpg images to a single PDF using following command
convert *.jpg mybook.pdf
but the pdf quality is not good.
Is there a way to retain the original quality of images in ...
- 1,169
2
votes
1
answer
2k
views
Combine PDFs and JPGs into one PDF
I have three PDFs and up to 10 JPGs that I need to merge into one PDF. I found PDFSam, but it looks like it doesn't accept JPGs. I'd also like to create a single batch file to do this for me (if that'...
- 153
4
votes
4
answers
16k
views
Convert word to "JPEG-like" pdf file
I've got a word document I'm trying to save to an uneditable, unselectable PDF file. Essentially, I'd like it to look like a JPEG, but in PDF format. I'm trying to avoid "printing to tiff, THEN ...
- 41
2
votes
1
answer
2k
views
Imagemagick PDF to JPG conversion failing
I'm trying to convert the first page of a PDF to a JPG. I'm pretty sure I got this to work with certain PDFs, but is it really possible that certain PDFs are made incorrectly and cannot be converted?
...
- 41
12
votes
2
answers
36k
views
Batch convert multiple PDF to Image on Mac
What would be the quickest way to convert a bunch of pdf files to jpeg files? I know I can open Preview and Save As image, but that could take a long time.
RdSchull
2
votes
4
answers
4k
views
Scanner with ADF that will save to USB memory stick [closed]
Is there such a thing as a scanner with an automatic document feeder and a duplexer, that will scan to a USB memory stick?
Other requirements, must be able to save as PDF (inc multipage PDF) or JPG.
...
user5024
5
votes
1
answer
5k
views
Ubuntu 8.04: convert PDF document to one JPG per page
I want to convert a PDF document that spans multiple pages to 1 JPG per page.
How can I do that?
- 4,100