How to convert my pdf or jpeg files to vector formats?

I can't get the trial version to work; I'm hoping this program is what I'm seeking, to convert my pdf, and or jpeg files to vector instantly like it claims; unfortunately I load image, and I've yet to see the final result, to see if software even works, please help me get this to work.

In conclusion, I'm hoping it works, and a full version is reasonable in cost because I could use a program like this.

Customer
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We apologize for any inconvenience this may have caused to you, do you wish convert from raster PDF or JPG format to vector format? if yes, we suggest you may download "VeryDOC Raster to Vector Converter Command Line" from this web page, we hope this software will work fine to you,

https://www.verydoc.com/raster-to-vector-converter-command-line/index.html
https://www.verydoc.com/dl.php?file=raster2vector.zip

after you download it, you can run command lines to convert your raster PDF or JPG format to vector format easily, please look at following web pages for more information,

https://www.verydoc.com/blog/convert-raster-to-vector-image-by-command-line.html

https://www.verydoc.com/raster-to-vector-converter-command-line/convert-curves-and-splines-of-bitmap-to-vector.html

https://www.verydoc.com/raster-to-vector-converter-command-line/convert-raster-to-vector-and-change-color.html

https://www.verydoc.com/raster-to-vector-converter-command-line/png-to-eps-vector-converter.html

https://www.verydoc.com/raster-to-vector-converter-command-line/tiff-to-vector-converter.html

https://www.verydoc.com/blog/how-to-convert-raster-imagepdf-to-vector-image.html

https://www.verydoc.com/blog/how-to-set-output-vector-resolution-when-converting-raster-files-to-vector.html

Here is the detailed command line options which supported by Raster2Vector.exe application,

E:\>Raster2Vector.exe
Convert image files and PDF files to smooth and scalable vector formats.
Input formats: pdf, jpg, gif, png, tif, tga, pcx, pnm (pbm, pgm, ppm), bmp
Output formats: eps, postscript, ps, pdf, svg, dxf, pgm, emf
-pagesize parameter is support A4, A3, A5, B5, Letter, Legal, Tabloid, Statement, Executive, Folio, Quarto, 10x14. Format names are case insensitive.
-width and -height dimensions can have optional units, e.g. 6.5in, 15cm, 100pt. Default is inches (or pixels for pgm, dxf).
Usage: RasterToVector [options] <in-file> [<out-file>]
-pagesize <string>   : set page size (default is letter)
-width <string>      : width of output file, unit: in/cm/pt
-height <string>     : height of output file, unit: in/cm/pt
-res <string>        : resolution (in dpi)
-rotate <string>     : rotate counterclockwise by angle
-margin <string>     : set margin to output file, unit: in/cm/pt
-lmargin <string>    : set left margin to output file, unit: in/cm/pt
-rmargin <string>    : set right margin to output file, unit: in/cm/pt
-tmargin <string>    : set top margin to output file, unit: in/cm/pt
-bmargin <string>    : set bottom margin to output file, unit: in/cm/pt
-tight               : remove whitespace around the input image
-linecolor <string> : set line color #rrggbb (default black)
-fillcolor <string> : set fill color #rrggbb (default transparent)
-opaque              : make white shapes opaque
-speckle <int>       : suppress speckles of up to this size (default 2)
-invert              : invert color for input image
-svggroup            : group related paths together
-svgflat             : whole image as a single path
-bwthreshold <int>   : set threshold value for color image to BW conversion, default is 240
-method2             : use second method to convert raster to vector format
-centerline          : trace a character's centerline, rather than its outline
-pdfres <int>        : resolution to render PDF pages, default is 150 DPI
-addcmd <string>     : Reserved parameter
-v                   : Print copyright and version info
-h                   : Print usage information
-help                : Print usage information
--help               : Print usage information
-?                   : Print usage information
-$ <string>          : Input registration key
Example:
   Raster2Vector.exe C:\*.tif C:\*.pdf
   Raster2Vector.exe C:\in.tif C:\out.eps
   Raster2Vector.exe C:\in.png C:\out.pdf
   Raster2Vector.exe C:\in.tif C:\out.ps
   Raster2Vector.exe C:\in.tif C:\out.svg
   Raster2Vector.exe C:\in.tif C:\out.pgm
   Raster2Vector.exe C:\in.tif C:\out.dxf
   Raster2Vector.exe -method2 C:\in.tif C:\out.emf
   Raster2Vector.exe -width 595pt -height 842pt C:\in.pdf C:\out.pdf
   Raster2Vector.exe -pagesize a4 C:\in.pdf C:\out.pdf
   Raster2Vector.exe -width 8.5 -height 11 C:\in.png C:\out.pdf
   Raster2Vector.exe -res 300 C:\in.png C:\out.pdf
   Raster2Vector.exe -margin 30pt C:\in.png C:\out.pdf
   Raster2Vector.exe -lmargin 10pt -tmargin 10pt -rmargin 10pt -bmargin 10pt C:\in.png C:\out.pdf
   Raster2Vector.exe -tight C:\in.png C:\out.pdf
   Raster2Vector.exe -linecolor #FF0000 C:\in.png C:\out.pdf
   Raster2Vector.exe -fillcolor #FF0000 C:\in.png C:\out.pdf
   Raster2Vector.exe -opaque C:\in.png C:\out.pdf
   Raster2Vector.exe -speckle 10 C:\in.png C:\out.pdf
   Raster2Vector.exe -invert C:\in.png C:\out.pdf
   Raster2Vector.exe -svggroup C:\in.png C:\out.svg
   Raster2Vector.exe -svgflat C:\in.png C:\out.svg
   Raster2Vector.exe -bwthreshold 240 C:\color.png C:\out.eps
   Raster2Vector.exe -method2 -centerline C:\color.png C:\out.eps
   Raster2Vector.exe -pdfres 300 C:\color.pdf C:\out.eps