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BrianTheLibrarian

Dimensions of eps file?

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Is it possible to find the dimensions of an eps file? I was able to get the dimensions if I converted the file to a bitmap, but when I try to run it using an eps file GDIplus just return a -1/-1 for the height /width of the file (same for svg files).  Was really hoping to find a solution using eps files, instead of converting them all to pngs to get the dimensions.

Was using the example provided by AutoBert here: 

 

*Just realized I posted this in the wrong forum too... (moved... Jos)

Edited by Jos

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Well i dont know much about this encapsulated files, but they say it can have a preview bitmap, and this is what i assume you want the dimensions of.

I have a possible solution, but it depends on your skill, so the idea i had is that you could read the byte where the dimensions info is on.

You basically get to identical eps files, and change the image size in one of them, then compare the two, if there's not much messing around with encryption or something, hopefully only a couple bytes will change, you then have to know what you're looking at, maybe convert the hex to decimal and see how it compares to the dimensions..

It's a mess tbh, i did a similar thing when i wanted to remove images from mp3's, after that i know exactly where the image would start and what bytes represented the end of the bmp's.


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GPO Tool - Export/Import Group policy settings.

MirrorDir - Synchronize/Backup/Mirror Folders

BeatsPlayer - Music player.

Params Tool - Right click an exe to see it's parameters or execute them.

String Trigger - Triggers pasting text or applications or internet links on specific strings.

Inconspicuous - Hide files in plain sight, not fully encrypted.

Regedit Control - Registry browsing history, quickly jump into any saved key.

Time4Shutdown - Write the time for shutdown in minutes.

Power Profiles Tool - Set a profile as active, delete, duplicate, export and import.

Finished Task Shutdown - Shuts down pc when specified window/Wndl/process closes.

NetworkSpeedShutdown - Shuts down pc if download speed goes under "X" Kb/s.

IUIAutomation - Topic with framework and examples

Au3Record.exe

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What exactly you want to get ?

Width height depth/colors ?


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https://en.wikipedia.org/wiki/Encapsulated_PostScript

https://www.adobe.com/content/dam/acom/en/devnet/actionscript/articles/5001.DSC_Spec.pdf
https://www-cdf.fnal.gov/offline/PostScript/5002.PDF

Read:
Guidelines for Creating EPS Files
Required DSC Header Comments

You can also read this:
https://www.loc.gov/preservation/digital/formats/fdd/fdd000246.shtml

You must focus on:

Quote
  • '%%BoundingBox: llx lly urx ury'
    The four arguments of the bounding box comment correspond to the lower-left (llx, lly) and upper-right (urx, ury) corners of the bounding box.

 

As far, as I remember EPS i just plain text document.
So you should read them and parse to find/get '%%BoundingBox: llx lly urx ury', and recalcutate this coordinates.

mLipok

 


Signature beginning:   Wondering who uses AutoIT and what it can be used for ?
* GHAPI UDF - modest beginning - communication with GitHub REST API Forum Rules *
Include Dependency Tree (Tool for analyzing script relations)
ADO.au3 UDF     POP3.au3 UDF     XML.au3 UDF    How to use IE.au3  UDF with  AutoIt v3.3.14.x  for other useful stuff click the following button

Spoiler

Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind. 

My contribution (my own projects): * Debenu Quick PDF Library - UDF * Debenu PDF Viewer SDK - UDF * Acrobat Reader - ActiveX Viewer * UDF for PDFCreator v1.x.x * XZip - UDF * AppCompatFlags UDF * CrowdinAPI UDF * _WinMergeCompare2Files() * _JavaExceptionAdd() * _IsBeta() * Writing DPI Awareness App - workaround * _AutoIt_RequiredVersion() * Chilkatsoft.au3 UDF * TeamViewer.au3 UDF * JavaManagement UDF * VIES over SOAP * WinSCP UDF * GHAPI UDF - modest begining - comunication with GitHub REST APIErrorLog.au3 UDF - A logging Library *

My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 UDF * ADO.au3 UDF SMTP Mailer UDF * Dual Monitor resolution detection * * 2GUI on Dual Monitor System * _SciLexer.au3 UDF * SciTE - Lexer for console pane

Useful links: * Forum Rules * Forum etiquette *  Forum Information and FAQs * How to post code on the forum * AutoIt Online Documentation * AutoIt Online Beta Documentation * SciTE4AutoIt3 getting started * Convert text blocks to AutoIt code * Games made in Autoit * Programming related sites * Polish AutoIt Tutorial * DllCall Code Generator * 

Wiki: Expand your knowledge - AutoIt Wiki * Collection of User Defined Functions * How to use HelpFile * Good coding practices in AutoIt * 

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * IE in TaskScheduler

PDF Related:https://www.autoitscript.com/forum/topic/177368-how-to-get-reference-to-pdf-object-embeded-in-ie/ *

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2020-09-20

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