Inspiring

Answered

Losing detail when opening PDF into Photoshop

Forum|Forum|3 years ago
July 16, 2022
5 replies
2346 views

I have a program that charts images for cross stitching and other needle arts and to print it out the program exports it as a PDF. I have been opening the PDF files into Photoshop for further editing and printing. I've come to realize that the "chart or image" is losing a lot of detail when it goes through the rasterization process when opening. I've included two versions of a chart, one is the original PDF file and the other is a jpg (for upload size restrictions) of the PDF converted in Photoshop. I think it shows clearly that I'm losing the little circle around the symbols. Is there any way I can fix this? I would really like to continue using Photoshop for working and the printing of these. Thanks in advance!

Journal_cover#3-cropped.pdf

This topic has been closed for replies.

Correct answer Conrad_C

The problem with using Photoshop is that because Photoshop must rasterize a PDF to edit it, the detail of the circles depends on whether you specify enough pixels at the time you open the PDF. Although the lines become smoother and finer if you specify a very high number of pixels, they don’t become easier to see.

Do you have access to Adobe Illustrator? Illustrator can edit PDF graphics because the Illustrator file format is now based on PDF. I opened the PDF in Illustrator, and it was a simple matter to select one of the circles, choose Select > Same > Stroke Weight (which selects all paths of the same stroke weight), and change all of them at once.

L

Linda PradettoAuthor

Inspiring

Problem solved! The company that has the charting program has fixed this issue by giving a way to adjust the size of the circle in their export process, all within 24 hours of my bringing it to their attention. This is a quick snapshot of a chart adjusted in their program and printed in Photoshop. Thanks everybody for your responses and especially Stephen and Conrad for giving me somwhere to start to look for a fix!

NB, colourmanagement

Community Expert

If the process of rasterising spoils the fine detail, then that’s somewhat unavoidable because all print is rasterised, i.e. even when printing from vector application like Acrobat a rasterisation process has to take place. Some software RIPs do a better job of this than a regular print driver by it plainly that’s a cost you'd like to avoid.

I hope this helps
neil barstow, colourmanagement net :: adobe forum volunteer:: co-author: 'getting colour right'
google me "neil barstow colourmanagement" for lots of free articles on colour management

Conrad_C

Correct answer

Community Expert

The problem with using Photoshop is that because Photoshop must rasterize a PDF to edit it, the detail of the circles depends on whether you specify enough pixels at the time you open the PDF. Although the lines become smoother and finer if you specify a very high number of pixels, they don’t become easier to see.

Do you have access to Adobe Illustrator? Illustrator can edit PDF graphics because the Illustrator file format is now based on PDF. I opened the PDF in Illustrator, and it was a simple matter to select one of the circles, choose Select > Same > Stroke Weight (which selects all paths of the same stroke weight), and change all of them at once.

L

Linda PradettoAuthor

Inspiring

Hmm, I see what you are saying. I need to make the circles thicker/more defined. I wonder if I can change that in the exporting program. I'd really rather not add anything to my budget by buying more of these Adobe programs. But if I can't fix it in the URSA program I'll have to seriously consider going to the whole Creative Cloud apps. I'm fine for my own charts, but I'm starting to do these for other people and they really do need the circles to show. Thank you for sheading light on the problem and giving me a workable answer.

Conrad_C

Community Expert

@Linda Pradetto wrote:

I wonder if I can change that in the exporting program.

If you can find a way to adjust it there, before export, that would be best.

@Linda Pradetto wrote:

But if I can't fix it in the URSA program I'll have to seriously consider going to the whole Creative Cloud apps. I'm fine for my own charts, but I'm starting to do these for other people and they really do need the circles to show.

The combination of features that helped was being able to 1) open a PDF file as editable vector objects, and 2) select all strokes of the same weight. If budget is limited, you can investigate other vector editing applications to see if they those features. Some affordable alternatives are Inkscape (free) and Affinity Designer, but I do not know if they can do both of those things.

Stephen Marsh

Community Expert

This is also a common complaint with CAD software. The issue is that the source paths don't have a stroke of sufficient thickness to render the circle with great legibility.

jane-e

Community Expert

@Linda Pradetto

Have you tried printing the PDF from Adobe Acrobat DC or the free Adobe Acrobat Reader?

Jane

L

Linda PradettoAuthor

Inspiring

I truly do not want to purchase another program for this. I do other adjustments to these charts besides printing. I will probably just have deal with it if I can't find a solution.

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.

Scanning file for viruses.

This file cannot be downloaded