Added experimental ghostscript wasm conversion using zero config

Author: ahnafnafee

.vscodeignore

@@ -21,6 +21,8 @@ demo/**
 .prettierignore
 .prettierrc
 .yarnrc
+.github/**
+.vscode-test/**
 CODE_OF_CONDUCT.md
 CONTRIBUTING.md
 generateEmojiShortcodeMap.js
@@ -30,3 +32,9 @@ tsconfig.webviews.json
 tsconfig.tsbuildinfo
 webpack.config.js
 yarn.lock
+node_modules/pdfjs-dist/legacy/**
+node_modules/pdfjs-dist/types/**
+node_modules/pdfjs-dist/web/**
+src/test/**
+demo/**
+docs/**

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Change Log
 
+## [0.6.0] - 2025-12-24
+
+### Major Changes
+
+-   **Internal Rendering**: Removed dependency on external tools (`Ghostscript`, `Poppler`, `pdfcairo`). The extension now renders PostScript files internally using WebAssembly (`postscript-wasm`) and `pdf.js`.
+-   **Zero Config**: Removed all path configuration settings. The extension works out of the box without any setup.
+
 ## [0.5.4] - 2025-12-23
 
 -   Fixed an issue where previewing files with special characters in the filename (e.g., spaces, parentheses) would fail with a syntax error.

README.md

@@ -7,10 +7,6 @@
 <p align="center">
     <img src="https://github.com/ahnafnafee/PostScript-Preview/raw/master/images/logo.png" alt="PostScript Preview Logo" width="128px" height="auto" />
 </p>
-<p align="center">
-    <br/>
-    <a title="READ REQUIREMENTS AFTER INSTALL" href="#-requirements"><img src="https://github.com/ahnafnafee/PostScript-Preview/raw/master/docs/images/req-btn.png" alt="Read Requirements After Install"></a>
-</p>
 
 <h1 align="center">PostScript Preview for VS Code</h1>
 
@@ -41,69 +37,14 @@
 This extension requires:
 
 -   **[PostScript Language](https://marketplace.visualstudio.com/items?itemName=mxschmitt.postscript)** extension for syntax highlighting
--   **GhostScript** (provides `ps2pdf`)
--   **Poppler** (provides `pdftocairo` and `pdfinfo`)
-
-### macOS
-
-```bash
-brew install ghostscript poppler
-```
-
-### Ubuntu / Debian
-
-```bash
-sudo apt-get install ghostscript poppler-utils -y
-```
-
-### Windows
-
-Install via [Chocolatey](https://chocolatey.org/install) (run as Administrator):
-
-```powershell
-choco install ghostscript --version 9.55.0 --force -y
-choco install poppler --version 0.89.0 -y --force
-```
-
-Add to PATH:
-
-```powershell
-[Environment]::SetEnvironmentVariable("Path",[Environment]::GetEnvironmentVariable("Path", [EnvironmentVariableTarget]::Machine) + ";C:\Program Files\gs\gs9.55.0\lib;C:\Program Files\gs\gs9.55.0\bin;C:\ProgramData\chocolatey\lib\poppler\tools",[EnvironmentVariableTarget]::Machine)
-```
 
-**Restart VS Code** after installation.
-
-<details>
-<summary>Manual PATH setup</summary>
-
-If you have issues setting PATH, add these manually via System Properties → Environment Variables:
-
-```
-C:\Program Files\gs\gs9.55.0\lib
-C:\Program Files\gs\gs9.55.0\bin
-C:\ProgramData\chocolatey\lib\poppler\tools
-```
-
-</details>
+**Note:** Pre-0.6.0 versions required external installations of Ghostscript and Poppler. As of v0.6.0, these are **no longer required**! The extension now handles rendering internally using WebAssembly.
 
 ## Configuration
 
-Configure custom executable paths in VS Code settings (useful for conda environments or non-standard installations):
+The extension is zero-config!
 
-| Setting                              | Description                   | Default      |
-| ------------------------------------ | ----------------------------- | ------------ |
-| `postscript-preview.path.ps2pdf`     | Path to ps2pdf executable     | `ps2pdf`     |
-| `postscript-preview.path.pdftocairo` | Path to pdftocairo executable | `pdftocairo` |
-| `postscript-preview.path.pdfinfo`    | Path to pdfinfo executable    | `pdfinfo`    |
-
-Example `settings.json`:
-
-```json
-{
-    "postscript-preview.path.ps2pdf": "/opt/ghostscript/bin/ps2pdf",
-    "postscript-preview.path.pdftocairo": "/opt/poppler/bin/pdftocairo"
-}
-```
+Previous configuration settings (`postscript-preview.path.*`) have been deprecated and removed as they are no longer needed.
 
 ## Multi-Page Documents
 

package.json

@@ -2,7 +2,7 @@
 	"name": "postscript-preview",
 	"displayName": "PostScript Preview",
 	"description": "PostScript Preview is an extension that helps to preview EPS and PS files in Visual Studio Code.",
-	"version": "0.5.4",
+	"version": "0.6.0",
 	"icon": "images/logo.png",
 	"publisher": "ahnafnafee",
 	"engines": {
@@ -45,26 +45,6 @@
 					"group": "navigation"
 				}
 			]
-		},
-		"configuration": {
-			"title": "PostScript Preview",
-			"properties": {
-				"postscript-preview.path.ps2pdf": {
-					"type": "string",
-					"default": "ps2pdf",
-					"description": "Path to ps2pdf executable (from GhostScript). Use this if ps2pdf is not in your system PATH."
-				},
-				"postscript-preview.path.pdftocairo": {
-					"type": "string",
-					"default": "pdftocairo",
-					"description": "Path to pdftocairo executable (from Poppler). Use this if pdftocairo is not in your system PATH."
-				},
-				"postscript-preview.path.pdfinfo": {
-					"type": "string",
-					"default": "pdfinfo",
-					"description": "Path to pdfinfo executable (from Poppler). Used for detecting page count in multi-page documents."
-				}
-			}
 		}
 	},
 	"scripts": {
@@ -88,8 +68,10 @@
 		"typescript": "^5.9.3"
 	},
 	"dependencies": {
+		"@jspawn/ghostscript-wasm": "^0.0.2",
 		"@types/temp": "^0.9.4",
 		"glob": "^7.2.3",
+		"pdfjs-dist": "^5.4.449",
 		"temp": "^0.9.1"
 	},
 	"repository": {

src/config.ts

@@ -1,17 +1,13 @@
 /**
- * Configuration management for PostScript Preview extension
+ * Configurations for PostScript Preview
  */
 import * as vscode from "vscode";
-import { ExtensionConfig } from "./types";
 
-/**
- * Get configuration values for executable paths
- */
-export function getConfig(): ExtensionConfig {
-    const config = vscode.workspace.getConfiguration("postscript-preview");
-    return {
-        ps2pdf: config.get<string>("path.ps2pdf", "ps2pdf"),
-        pdftocairo: config.get<string>("path.pdftocairo", "pdftocairo"),
-        pdfinfo: config.get<string>("path.pdfinfo", "pdfinfo"),
-    };
+export interface Config {
+    // No path configurations needed for internal rendering
+}
+
+export function getConfig(): Config {
+    // Return empty config or any future settings
+    return {};
 }

src/extension.ts

@@ -7,7 +7,6 @@ import * as vscode from "vscode";
 import path = require("path");
 import { PreviewState } from "./types";
 import { generatePreview } from "./preview";
-import { showWhatsNew } from "./whats-new";
 
 /**
  * Called when the extension is activated
@@ -18,7 +17,6 @@ export function activate(context: vscode.ExtensionContext): void {
 
     if (isWindows) {
         console.log("PostScript Preview: Checking for updates (Windows)...");
-        showWhatsNew(context);
     }
 
     const channel = vscode.window.createOutputChannel("PostScript-Preview");
@@ -49,64 +47,10 @@ export function activate(context: vscode.ExtensionContext): void {
 
             const mainFilePath = document.fileName;
 
+            // Generate preview without awaiting (fire and forget)
             generatePreview(mainFilePath, panel, channel);
             channel.appendLine(`Watching ${filePath}`);
 
-            // Handle messages from webview for page navigation
-            panel.webview.onDidReceiveMessage(
-                (message) => {
-                    const state = (panel as any).__previewState as
-                        | PreviewState
-                        | undefined;
-                    if (!state) {
-                        return;
-                    }
-
-                    switch (message.command) {
-                        case "prevPage":
-                            if (state.currentPage > 1) {
-                                state.currentPage--;
-                                generatePreview(
-                                    state.filepath,
-                                    panel,
-                                    channel,
-                                    state.currentPage,
-                                    state.pdfPath
-                                );
-                            }
-                            break;
-                        case "nextPage":
-                            if (state.currentPage < state.totalPages) {
-                                state.currentPage++;
-                                generatePreview(
-                                    state.filepath,
-                                    panel,
-                                    channel,
-                                    state.currentPage,
-                                    state.pdfPath
-                                );
-                            }
-                            break;
-                        case "goToPage": {
-                            const page = parseInt(message.page, 10);
-                            if (page >= 1 && page <= state.totalPages) {
-                                state.currentPage = page;
-                                generatePreview(
-                                    state.filepath,
-                                    panel,
-                                    channel,
-                                    state.currentPage,
-                                    state.pdfPath
-                                );
-                            }
-                            break;
-                        }
-                    }
-                },
-                undefined,
-                context.subscriptions
-            );
-
             // Watch for file changes
             const watcher = vscode.workspace.createFileSystemWatcher(filePath);
             watcher.onDidChange((_: vscode.Uri) => {