Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. We don’t allow questions seeking recommendations for books, tools, software libraries, and more. You can edit the question so it can be answered with facts and citations. Closed 4 years ago. Improve this question
I'm attempting to convert a PDF to SVG. However, the one I am using currently maps a path for every letter in every piece of text, meaning if I change the text in its source file, it looks ugly.
I was wondering what the cleanest PDF to SVG converter is, hopefully one that doesn't have a path for it's text areas that simply don't need one. As we know, PDF and SVG are fairly similar, so I assume there's some good converters out there.
You can use Inkscape on the commandline only, without opening a GUI. Try this:
inkscape \
--without-gui \
--file=input.pdf \
--export-plain-svg=output.svg
For a complete list of all commandline options, run inkscape --help
.
Inkscape is used by many people on Wikipedia to convert PDF to SVG.
They even have a handy guide on how to do so!
--export-text-to-path
.
I am currently using PDFBox which has good support for graphic output. There is good support for extracting the vector strokes and also for managing fonts. There are some good tools for trying it out (e.g. PDFReader will display as Java Graphics2D). You can intercept the graphics tool with an SVG tool like Batik (I do this and it gives good capture).
There is no simple way to convert all PDF to SVG - it depends on the strategy and tools used to create the PDFs. Some text is converted to vectors and cannot be easily reconstructed - you have to install vector fonts and look them up.
UPDATE: I have now developed this into a package PDF2SVG which does not use Batik any more:
which has been tested on a range of PDFs. It produces SVG output consisting of
characters as one
paths as
images as
Later packages will (hopefully) convert the characters to running text and the paths to higher-level graphics objects
UPDATE: We can now re-create running text from the SVG characters. We've also converted diagrams to domain-specific XML (e.g. chemical spectra). See https://bitbucket.org/petermr/svg2xml-dev. It's still in Alpha, but is moving at a useful speed. Anyone can join in!
UPDATE. (@Tim Kelty) We are continuing to work on PDF2SVG and also downstream tools that do (limited) Java OCR and creation of higher-level graphics primitives (arrows, boxes, etc.) See https://bitbucket.org/petermr/imageanalysis https://bitbucket.org/petermr/diagramanalyzer https://bitbucket.org/petermr/norma and https://bitbucket.org/petermr/ami-core . This is a funded project to capture 100 million facts from the scientific literature (contentmine.org) much of which is PDF.
This topic is quite old, but here is a handy solution that I found:
http://www.cityinthesky.co.uk/opensource/pdf2svg/
It offers a tool, pdf2png, which once installed does exactly the job in command line. I've tested it with irreproachable results so far, including with bitmaps.
EDIT : My mistake, this tool also converts letters to paths, so it does not address the initial question. However it does a good job anyway, and can be useful to anyone who does not intend to modify the code in the svg file, so I'll leave the post.
brew install pdf2svg
.
Here is the process that I ended up using. The main tool I used was Inkscape which was able to convert text alright.
used Adobe Acrobat Pro actions with JavaScript to split-up the PDF sheets
ran Inkscape Portable 0.48.5 from Windows Cmd to convert to SVG
made some manual edits to a particular SVG XML attribute I was having issues with by using Windows Cmd and Windows PowerShell
Separate Pages: Adobe Acrobat Pro with JavaScript
Using Adobe Acrobat Pro Actions (formerly Batch Processing) create a custom action to separate PDF pages into separate files. Alternatively you may be able to split up PDFs with GhostScript
Acrobat JavaScript Action to split pages
/* Extract Pages to Folder */
var re = /.*\/|\.pdf$/ig;
var filename = this.path.replace(re,"");
{
for ( var i = 0; i < this.numPages; i++ )
this.extractPages
({
nStart: i,
nEnd: i,
cPath : filename + "_s" + ("000000" + (i+1)).slice (-3) + ".pdf"
});
};
PDF to SVG Conversion: Inkscape with Windows CMD batch file
Using Windows Cmd created batch file to loop through all PDF files in a folder and convert them to SVG
Batch file to convert PDF to SVG in current folder
:: ===== SETUP =====
@echo off
CLS
echo Starting SVG conversion...
echo.
:: setup working directory (if different)
REM set "_work_dir=%~dp0"
set "_work_dir=%CD%"
:: setup counter
set "count=1"
:: setup file search and save string
set "_work_x1=pdf"
set "_work_x2=svg"
set "_work_file_str=*.%_work_x1%"
:: setup inkscape commands
set "_inkscape_path=D:\InkscapePortable\App\Inkscape\"
set "_inkscape_cmd=%_inkscape_path%inkscape.exe"
:: ===== FIND FILES IN WORKING DIRECTORY =====
:: Output from DIR last element is single carriage return character.
:: Carriage return characters are directly removed after percent expansion,
:: but not with delayed expansion.
pushd "%_work_dir%"
FOR /f "tokens=*" %%A IN ('DIR /A:-D /O:N /B %_work_file_str%') DO (
CALL :subroutine "%%A"
)
popd
:: ===== CONVERT PDF TO SVG WITH INKSCAPE =====
:subroutine
echo.
IF NOT [%1]==[] (
echo %count%:%1
set /A count+=1
start "" /D "%_work_dir%" /W "%_inkscape_cmd%" --without-gui --file="%~n1.%_work_x1%" --export-dpi=300 --export-plain-svg="%~n1.%_work_x2%"
) ELSE (
echo End of output
)
echo.
GOTO :eof
:: ===== INKSCAPE REFERENCE =====
:: print inkscape help
REM "%_inkscape_cmd%" --help > "%~dp0\inkscape_help.txt"
REM "%_inkscape_cmd%" --verb-list > "%~dp0\inkscape_verb_list.txt"
Cleanup attributes: Windows Cmd and PowerShell
I realize it is not best practice to manually brute force edit SVG or XML tags or attributes due to potential variations and should use an XML parser instead. However I had a simple issue where the stroke width on one drawing was very small, and on another the font family was being incorrectly identified, so I basically modified the previous Windows Cmd batch script to do a simple find and replace. The only changes were to the search string definitions and changing to call a PowerShell command. The PowerShell command will perform a find and replace and save the modified file with an added suffix. I did find some other references that could be better used to parse or modify the resultant SVG files if some other minor cleanup is needed to be performed.
Modifications to manually find and replace SVG XML data
:: setup file search and save string
set "_work_x1=svg"
set "_work_x2=svg"
set "_work_s2=_mod"
set "_work_file_str=*.%_work_x1%"
powershell -Command "(Get-Content '%~n1.%_work_x1%') | ForEach-Object {$_ -replace 'stroke-width:0.06', 'stroke-width:1'} | ForEach-Object {$_ -replace 'font-family:Times Roman','font-family:Times New Roman'} | Set-Content '%~n1%_work_s2%.%_work_x2%'"
Hope this might help someone
References
Adobe Acrobat Pro Actions and JavaScript references to Separate Pages
How to automate extracting pages from a PDF...
JavaScript for Acrobat API Reference - extractPages
Extract pages to separate pdfs (something wrong with loop?)
How can I create a Zerofilled value using JavaScript?
How to output integers with leading zeros in JavaScript
GhostScript references to Separate Pages
GhostScript noob help - Breaking a multipage PDF file...
How to convert a multi-page PDF file...
Splitting a PDF with Ghostscript
Inkscape Command Line references for PDF to SVG Conversion
convert pdf to svg
Convert PDF to clean SVG?
Windows Cmd Batch File Script references
Hidden features of Windows batch files
SS64.com - Index of the Windows CMD command line
Why is the FOR /f loop in this batch script evaluating a blank line?
XML tag/attribute replacement research
How can you find and replace text in a file using the Windows command-line environment?
Changing tag data in an XML file using windows batch file
update XML from the command line [windows]
How to modify/create values in XML files using PowerShell?
Editing XML Attributes using Powershell
powershell change the value of XML Element attribute
for /l %i in (1,1,58) Do @%inkscape% --pdf-page %i ...
to separate the pages and convert them directly in svg
If DVI to SVG is an option, you can also use dvisvgm to convert a DVI file to an SVG file. This works perfectly for instance for LaTeX formulas (with option --no-fonts
):
dvisvgm --no-fonts input.dvi -o output.svg
There is also pdf2svg which uses poppler and Cairo to convert a pdf into SVG. When I tried this, the SVG was perfectly rendered in inkscape
.
Bash script to convert each page of a PDF into its own SVG file.
#!/bin/bash
#
# Make one PDF per page using PDF toolkit.
# Convert this PDF to SVG using inkscape
#
inputPdf=$1
pageCnt=$(pdftk $inputPdf dump_data | grep NumberOfPages | cut -d " " -f 2)
for i in $(seq 1 $pageCnt); do
echo "converting page $i..."
pdftk ${inputPdf} cat $i output ${inputPdf%%.*}_${i}.pdf
inkscape --without-gui "--file=${inputPdf%%.*}_${i}.pdf" "--export-plain-svg=${inputPdf%%.*}_${i}.svg"
done
To generate in png, use --export-png
, etc...
I found that xfig
did an excellent job:
pstoedit -f fig foo.pdf foo.fig
xfig foo.fig
export to svg
It did much better job than inkscape. Actually it was probably pdtoedit that did it.
Here is the NodeJS REST api for two PDF render scripts. https://github.com/pumppi/pdf2images
Scripts are: pdf2svg and Imagemagicks convert
Success story sharing
--without-gui
is deprecated at least with inkscape 1.0.1inkscape --export-type="svg" input.pdf